When the Ex Is High-Conflict: Protecting Your Blended Family Without Losing Yourself

Lisa Daniels

3 days ago

7 min read

Blending families can bring so much joy, but it can also come with challenges you never quite anticipated. And when a former partner is consistently difficult to communicate with, even the simplest arrangements can start to feel exhausting.

The good news? You don't have to control every part of the situation to make a difference.

There are ways to protect your children, support your relationship and create a calmer home, even when the circumstances around you feel anything but calm.

What does 'high-conflict' actually mean?

A high-conflict ex isn't simply someone you disagree with. Most separated parents disagree sometimes. The difference is in the pattern and intensity.

High-conflict behaviour can include repeated criticism, attempts to control arrangements, refusing to communicate respectfully, involving children in adult disputes, undermining the other household or turning every small issue into a major confrontation.

It can leave everyone feeling exhausted. A new partner may feel targeted. The biological parent may feel torn. And children may find themselves caught in the middle, trying to manage loyalties they never asked to carry.

This isn't about labelling someone or winning an argument. It's about protecting children, reducing conflict and helping your household feel steady.

Children notice more than we think

Children are often far more aware of adult conflict than parents realise.

They might hear arguments on the phone, notice the change in your tone when a message arrives or feel anxious before handovers. They may even worry about saying the wrong thing in either home.

Some children become peacemakers. Others withdraw or act out. Some appear perfectly fine on the outside while quietly carrying a great deal of worry.

Children should never be asked to choose sides, carry messages, spy on the other household or manage adult emotions. They need permission to love both parents without feeling guilty.

One of the most protective things you can say is:

“You do not have to fix this. The adults will handle the adult stuff.”

It's a simple reminder that the responsibility belongs with the grown-ups, not the children.

You don't have to win every argument

When you're dealing with a high-conflict ex, it's tempting to defend yourself, correct every untruth or prove your point.

But engaging in every disagreement can often give the conflict more energy. Learning to protect your peace is a difficult, yet necessary, part of dealing with a high-conflict ex.

Before responding, ask yourself:

Does this actually need a reply?
Does it affect the children?
Can I respond in a factual, necessary and calm way?

If the answer is no, sometimes the best response is no response at all.

Silence can be a boundary, not a weakness.

When co-parenting isn't working, consider parallel parenting

We often hear about the importance of cooperative co-parenting. But what happens when cooperation simply isn't possible?

In some situations, parallel parenting can be a more realistic and protective approach.

Parallel parenting means each household manages day-to-day parenting independently. Rather than trying to agree on every detail, share parenting philosophies or create one unified household across two homes, the focus stays on the essentials.

Things like safety, schedules, school, health and major decisions.

Communication should be brief, factual and child-focused. Written communication can be helpful because it creates a record and reduces the opportunity for emotional escalation.

For example:

Situation: “The children are with me from Friday at 6pm.”

Fact: “Their football kit is in the blue bag.”

Request: “Please ensure medication is packed for Sunday.”

Closing: “Thank you.”

No lengthy explanations. No emotional debate. No responding to comments designed to provoke a reaction.

Just the information that needs to be shared.

How to respond without adding to the conflict

When communication feels hostile, knowing what to say can be difficult.

You might want to defend yourself, correct an accusation or have the final word.

That's understandable. But reacting emotionally can give an already difficult situation more fuel.

A helpful principle is:

"Respond to the issue, not the insult."

Here are a few examples of what that can look like in practice.

1. Move from blame to facts

Imagine receiving a message that says:

“You're always late. You clearly don't care about the children.”

Rather than defending yourself, you could respond:

“I understand you're frustrated. I'm aiming to arrive at 6pm. If there's a specific time you need me to collect them, let me know.”

You're not accepting the criticism. You're simply bringing the conversation back to the children and the practical arrangement.

2. Set a boundary, and stick to it

If a message becomes personal:

“Your partner has no right to be involved in my children's lives.”

You might say:

“I'm happy to discuss arrangements that affect the children. I won't discuss personal comments about my partner.”

And if the same comment comes again?

“As I said, I'm happy to discuss the children. I won't discuss personal comments.”

Repetition isn't rude. It shows that you're willing to discuss parenting matters, but not engage in personal attacks.

3. Turn criticism into a clear request

If you receive:

“You never tell me anything. You're deliberately keeping things from me.”

Rather than arguing about your intentions, try asking:

“What information do you need, and by when?”

This moves the conversation away from blame and towards practical communication.

4. Don't take the bait

Some messages can feel deliberately provocative.

“I can't believe you're letting them stay up that late. No wonder they're tired and badly behaved.”

A calm response might be:

“Thanks for letting me know your concern. Bedtime here is 8.30pm on school nights.”

You don't need to justify every decision or get drawn into a debate about different parenting styles.

Acknowledge the concern, state the fact and move on.

5. Keep children out of adult conversations

If a child says:

“Mum says you're not allowed to do that.”

Try not to question them further or criticise the other parent.

Instead, you might say:

“Thanks for telling me. I'll check that with your mum. You don't need to worry about it.”

Then contact the other parent directly:

“I understand there may be a concern about Saturday. Please send me the details in writing and I'll respond.”

This keeps children out of adult disagreements and helps protect their sense of safety.

A quick check before you press send

Ask yourself:

Is this about the children?
Is it factual?
Is it necessary?
Is it calm?

If the answer to any of these is no, it may not need a response.

You don't have to attend every argument you're invited to.

Distinguishing between punishment and protection

Setting boundaries can feel uncomfortable, particularly when you're worried about making an already difficult situation worse.

But boundaries aren't about punishing another person. They're about protecting the people involved.

You might decide that messages should only relate to the children. You might agree to respond within a set timeframe, except in emergencies. You might keep communication to email or a parenting app, or avoid phone calls that regularly become heated.

The important thing is consistency. A boundary works best when it's repeated calmly, without apology and without getting drawn into an argument about the boundary itself.

You're not being difficult by setting limits; you're helping create the conditions children need to feel safe.

Don't let someone else set the emotional temperature of your home

A high-conflict ex may criticise your home, your parenting, your partner or your decisions. They may involve the children, knowingly or unknowingly, as a way of maintaining influence; however, you don't need to match their intensity.

Your role is to remain as calm and steady as you can.

That doesn't mean you won't feel angry, hurt or frustrated. Of course you might and those feelings are completely understandable. However, you can experience those emotions without allowing them to determine your response.

Take a moment before replying. Write the message and leave it for an hour. Talk to your partner or someone you trust and then remind yourself:

I don't have to attend every argument I'm invited to.

Remember to protect your relationship, too

High-conflict situations can place enormous strain on a new relationship.

A stepparent might feel resented, excluded or unfairly blamed. The biological parent may feel defensive, guilty or exhausted from managing contact with an ex.

It's important to make space to talk about those feelings, openly but carefully.

Try checking in with each other regularly.

Ask:

What's felt hardest this week?
What do you need from me?
Is there anything we could do differently?

Try not to blame each other for the behaviour of someone outside your relationship.

The problem isn't your partner. The problem is the conflict.

Feeling like a team can help provide stability for children, while reminding you both that you're facing the situation together.

Create a home where everyone can breathe

You can't control everything that happens in another household.

But you can make your own home predictable, warm and emotionally safe.

Keep routines consistent, set clear expectations and make time for connection as well as rules. Giving your children space to talk about how they're feeling without fear of judgement is just as important.

If a child comes home upset, resist the temptation to interrogate them or criticise the other parent.

Instead, try:

“That sounds hard. I'm here. You are safe here.”

Children need to know that home is somewhere they can breathe.

Focus on the things you can control

You can't control an ex's words, moods or choices and you can't make someone cooperate or force them to put the children first.

However, there are still plenty of things within your influence.

You can control:

How you communicate.
What you expose children to.
The routines you create in your home.
How you respond to provocation.
The support you give your partner.
The emotional safety you help create.

It may seem a small part in a bigger picture, however it is the most powerful thing you can do to influence the situation.

You don't have to get everything right

Living alongside a high-conflict ex can make even a loving home feel under pressure.

You might feel tired, tearful, angry or find yourself questioning whether you're handling things well enough.

These situations can be incredibly demanding, and it's important to recognise the emotional weight they carry. The goal isn't necessarily a perfect co-parenting relationship, as sometimes that isn't possible.

The goal is to help children experience a childhood that feels as safe, stable and loved as possible, despite the conflict around them.

Keep the focus on the children. Keep communication factual. Keep boundaries clear. And keep creating a home where everyone feels supported.

You don't have to fix another adult. Focus on being the safe, steady parent or stepparent your children need.