I think you should always have some type of boundary for yourself and your children. I can't speak to your sitch or what your boundaries should be. I will give you two pieces of advice, though.
1. Believe none of what you hear and half of what you see. It's good that you are taking a hard look at yourself when you get any feedback from WAH, but if he's saying you're manipulative and you feel like you aren't at all, then that seems like a classic "do not believe that" moment from a WAS. Don't believe it. My WAW's thing I refused to believe is that she said she never loved me, ever (10 years). I know that is a complete lie, even if she believes it right now.
2. Save a copy of your most recent post to your phone or computer. It will possibly be deleted at any time due to the work on this board.
Me 38, WAW 30 D11 (former marriage) S2 T 8 years M 3 years BD 8/20/23 S 8/20/23