BF very close with ex wife

I’m probably being wayyy to petty about this but my friends say this is a red flag. Another part of me kinda understand. So what do y’all thing?

Bf and I are long distance. We are pretty serious, marriage in the future and kids have been brought up. We plan on moving in together in a year. We have been together for almost a year now. We are both divorced.

Anyway, he and his ex wife are best friends (totally get it, me and my ex husband stayed friends). He goes over to her place every Sunday to see his dogs and hang with her and have dinner. Yes this did bother me at first and low key still does but I’m trying to work on it. Maybe I’m just jealous that she actually gets to see him and I only see him every couple months.

Sometimes (ok, all the time) it feels like she’s far more important to him. If something is wrong with her he panics and makes sure she’s ok(this is even when we are together),but when it’s me he doesn’t seem to react as “dramatic/worried”. I have brought this up to him and he says he reacts the same way to both of us which is false. For example: she got quarantined due to a client with possible covid. He went as far as telling me how worried he was. But then I get exposed every day to someone who turned out to actually be positive he isn’t as worried. jokes “don’t die on me now lol”.

When he sees her on his weekly visit, he stops all communications with me, leaves me on read, all that and all day. Now this wouldn’t bother me as much, expect for the fact that he still texts me when he is with other friends. I brought this up to him today and he told me that she doesn’t want him texting me when they are together and in return she won’t text any guys either. Is this a red flag or am I over thinking this!???

I told him that it feels like they are more close then him and I are and he agreed they are closer because they have known each other for 3 years. But shouldn’t you be closer to the person u are dating, not ur ex? But what confuses me is how he brings up getting married and having babies with me and he can’t wait.

Please tell me if I’m being over dramatic.