Hi SB. You need a mantra or something to block your thoughts and your H's vicious destructive communications.

He is sick in the head.

Think about it. When you were first in love and head over heels and you were reveling in the feeling of being wonderfully loved, how much time out of your day would you have spent sending another person messages like that? Your H is trying to create drama and trying to hurt you. If you need to, block his texts and calls for a while and tell him if he continues to send you messages like that via other means that you will block them too.

Tell him you will coparent and not stand in the way of the best relationship with his children that he can build, but you will not subject yourself to this purposeless garbage. I haven't recommended this in a while, but Pia Mellody's set of CDs on boundaries would be really helpful for you in dealing with this stuff.

Adinva 51, S20, S18
M24 total
6/15/11-12/1/12 From IDLY to H moving out
9/15/15-3/7/17 From negotiating SA to final D at age 50
5/8/17-now: New relationship with an old friend
__
Happiness is a warm puppy.