Firstly you're not unreasonable, you're a saint!!
I'm so sorry you're going through this, what you're describing is a textbook example of DARVO: Deny, Attack, and Reverse Victim and Offender. It's a common tactic used by abusers to flip the narrative and cast you as the abuser, while they dodge accountability for their behaviour.
Let’s be really clear:
He initiated the separation after a pattern of abusive behaviour.
He then started spreading false allegations, attempting to destroy your reputation and relationships.
He films you and makes false statements while recording, clearly trying to provoke or entrap you.
His family is involved in a public smear campaign, which is further emotional abuse.
And now he wants to stay in your home for two more years, on the condition that you vacate the house during visits from people who have attacked you? That is deeply manipulative and entirely unreasonable.
You don’t just have grounds to say no, you have every right to protect your home, your peace, and your children from further harm.
Could this count as coercive control under UK law?
Possibly, yes. Coercive and controlling behaviour is a criminal offence under the Serious Crime Act 2015. It includes a pattern of behaviour designed to isolate, frighten, humiliate, or exert control over someone. His actions may well meet that threshold—especially if:
He is isolating you socially via false allegations.
He is trying to control your use of your own home.
He is surveilling you (e.g. filming you to manipulate the truth).
He is manipulating child contact or using the children as leverage.
You might want to speak to Women's Aid, Rights of Women, or a solicitor who specialises in domestic abuse cases. Keep a log of every incident, especially things like the filming, false accusations, and social media harassment. If he’s using these behaviours to frighten, intimidate, or undermine your ability to live freely, it could absolutely be relevant to a coercive control case.
You’ve done nothing wrong. You don’t owe him or his family anything. Please trust your gut , what you’re feeling is real, and you’re not imagining the madness. You’re strong for standing your ground.