Hello @Elke888. Very similar situation here. Unfortunately, I have nothing to offer.
Everyone's situation is different. For me, as briefly as I can make it, my ex-h ran off with a co-worker and I had to make the unenviable choice to relinquish my daughters so that they would not be torn between us–and they would have been. And they'd have thought it fun, as they do still. Power! I thought it would force a correction, but I was naive. My situation was not just between my ex-h and me, it involved grandparents and very dysfunctional family relationships. Everything was so dysfunctional that we could not live in the same state as our parents, and everyone in my birth family is scattered. Family weddings are isolated events and no-one from the family is present. Hostilities all around.
I have been cast in a very bad light to take the heat off their abandoning father and the adulterers. The lies, deceptions and betrayals are astounding and I can do nothing to defend myself. I'm the demon.
Anyway, that was decades ago and although I thought there would be a reconciliation, this has not occurred at any level. My daughters grew up, married, divorced, re-married (at least one of them), had 5 children between them, and I've never met any of them.
I don't feel anything anymore. One lives quite close by, the other close enough, by car.
There's nothing I can do to change the situation. It takes both sides respectfully co-operating for that to work, and they are just having fun with the power they think they have over me.
I am totally isolated too. I trust no-one because in the real world, I have found no-one to trust. I keep busy doing things in my life that help me grow as a person, even if no-one else cares. I make the most of my life in my circumstances, which is all any of us can do, in any life circumstance.
So, @Elke888, I am truly sorry that this has happened to you. You're right, it is child abuse, and there should be laws against it. It's also grandparent abuse–and, in my family, that's what it was supposed to be. It's just a disgusting situation.
There's nothing else I can say. I am sorry if this comes across as all about me. There is no other way I could reply to your post. I wish you well. I hope a way to resolve your situation presents in the not too distant future. I wish you well.