Insecure about my bf’s relationship with his ex wife

I’m in my feels a bit about the relationship my bf of a few months has with his ex wife.

They have a kid together and coparent so of course there is communication between them (kid is too young to have a cell phone). Lately I’ve been noticing some texts while he has the kid where she is sharing things about her day or travels or whatnot. The intention is for my bf to share the photos or things with the kid but I guess it just makes me uneasy to always see her name pop up on his phone.

They had an amicable divorce and he says he feels like she got lost in motherhood and they lost their connection as a couple. Well, now that she has time without the kid (while he has the kid) she seems to be reconnecting with herself and basically doing the things he encouraged her to do while they were married (things she enjoys and are good for her). I guess my “fear” is that they may reconnect as she becomes more like the version of herself he fell in love with.

And I mean…if that happens I wouldn’t want to stand in the way…but, damn, it would hurt.

I’ve told him in the past that I would encourage them to have a friendship since they will always be in each others lives. He says that right now he doesn’t feel that desire. He’s happy to coparent and keep it simple.

I don’t want to be controlling. But Ive never dated someone with a kid so im not sure what “normal” communication between exes/coparents looks like. Im just feeling afraid of being blindsided.