This is what I would do if I had a derelict tribe of cheaters, losers, deadbeats, alcoholics and spawn from prior marriages involving me in their soap opera games:

1) Block them from texting or calling me or IM'ing me.

2) Only allow email communication with ex-H and have it only pertain to the baby.

3) If they fail to leave me the F alone, seek a restraining order.

4) If the opportunity arises, get out of Dodge City and start somewhere fresh.

And most importantly, I would not respond to any of their bait or shiite like you just did. It only invites more batshite crazy from them.