sounds like a horrible situation to be in. You have every right to feel the way you do though. Child support can get really ugly too. DH has a DS14 who we don't see any more. Since DH & I got married she has cut all ties. The only contact we had was a try at Facebook, but she blocked us
I'm sure after a while things will settle down. And I have to agree with N2L, counselling is a great idea.