Do anyone thinks this is weird

Hey I’m Carley 25 F, and this post is about how I became best friend with my baby dad other baby mom F 27, We were both pregnant at the same time but she didn’t know about me and I didn’t know about her until like 5 years ago, we never beef over him ( Thank goodness ) and we became close after that and I am happy I met her….. but I am trying to be friends with his other bm but since she’s with him now. She definitely doesn’t fw my best friend or me lowkey because we all have the same baby dad she’s just dumb to not see he’s a bum, she told me how he treated her when she was carrying his child. But she won’t let him go I kinda feel bad for her but I need y’all opinion on this should I stop trying to be friends with his fourth baby ma? Or should I keep trying? I just have a good heart that’s all