Ugh, sounds like my ex. Pretty sure there's a script they pass around. All the same old tired lines. It really used to get to me too.
I ended up setting a lot of boundaries around contact with him after I left (way more than I had when we lived together). That helped a lot.
I will not talk to you if you're drinking. That eliminated 85-90% of all conversations right there.
I will only talk about our son, or just hand the phone to our son, since he misses him so much, but not enough to stop drinking, just enough to cry and complain and blame me. Whatever.
I will not tolerate verbal abuse.
Those 3 things served me well. Nowadays I just tell him to have his lawyer call my lawyer. Let him spend money if he wants to unload a bunch of bs on me.
Stay strong. It does get easier, and you and your kids deserve peace.