This sucks big time for you. And I agree with everyone, it'll be the best thing in the long run. Stay strong! Don't fall for his lunatic BS. If you don't like the first lawyer, interview others. Stick with the people who support you, and it's GREAT that your parents do!
He's a drunk and a cheater. End of sentence. Run for the hills with your precious babies.
(sometimes I wish I'd take my own advice)