M,
I agree with 3. Don't respond. 180 him to show he can't use the kids as a pawn in his little game. He's proving that he's willing to hit below the belt when he loses control.

This is on him. I am so glad you filed for S. I think you are right about him putting all of this on you.

Me:33 H:35
M: 12 years
D-15 S-6
Bomb: 6-2013
OW: 11/2013
Kids and I moved out: 11/2013 when he continued to lie about affair
Kids and I moved back in 12/2013
H moved out 2/2014