Ladies I need to vent and some advice? Ex husband

* a little bit of back story me and my ex husband split up 2 years ago or so we had so many problems and I divorced him I have been much happier. We are both with different people now and I am pregnant at the moment with the person I’m with now. Let me start by saying we were split for awhile but didn’t finalize the divorce until around May and I feel like he’s had all these angry feelings. One minute he is fine and the next day he is coming at me about my parenting when I have sole custody of our daughter. She is 3 so sometimes she just gets mad and says she doesn’t want to go to either house and tonight she threw a fit about not wanting to come with me but I feel like it’s just because she’s young and wants to stay where she is playing at the time. He was all like we need to sit down and talk about it and I didn’t see the point in meeting over something like that. Then he switches up his story and said me and him need to get along better that’s why he’s mad but the thing is we have been? It’s so confusing he’s the one that keeps coming at me and I’m tired of it. I’ve just really tired to get along with him and his gf because I didnt see the point in fighting when it’s over. My bf met him for our daughter but doesn’t speak to him much because he feels like it’s okay to co parent but no need to stand around and have an hour conversation we just need to be nice and I agree. My ex just can’t see it that way he wants to stand around and have long conversations with me and I’m starting a new life and just want to handle situations with our daughter and that’s it. Also everytime we both get out of the car he just talks to me and mentions old stuff its odd.

*i wanted to know if any other mamas have been through this and have some great pointers or advice for co parenting. I’m trying he just has been coming at me a lot more about my parenting sense we announced our pregnancy.