Dday))) <--- putting my arm around Dday's shoulder>
Man, I am sorry about your S's. Your ex is so messed up and they're the ones suffering the consequences.
Kids are always the victims in these family break-ups. Always. But the WAS's are just too blind in their selfishness to recognize it.
I agree with what others suggest. Document everything and start moving towards taking full custody of your kids. Holding a child's adopted status over their heads is child-abuse.