I need to know is it me ??? 🤔

My boyfriend has a female friend. That constantly thinks everything I do or say on social media is about her. She constantly confronts my boyfriend about any post I write or share about a relationship and think it’s about her. I do admits about 6 months ago we did have a big fall out about them being “too” close of friends because she began to want to be more than friends while we was dating and was over stepping boundaries. That issue was quickly resolved. She nows has her own relationship as the two remained friends. But she constantly tells him I’m always talking about her like I don’t have a life of my own. To be honest I completely forgot we are Social media friends. She gets mad at my boyfriend if he’s hasn’t talk to her in a couple days or if he doesn’t answer her calls. My boyfriend n I are expecting and he is overly excited about having a baby so he hasn’t been spending time or talking to anyone & prepping for our little one in which she told him that she was happy for us. But she thinks the problem is solely me like I tell him not to talk to her. I’m just curious is why do she think I’m the root of their friendship problems. He explains to me her family thinks she is a home wrecker because of our previous fallout but that has nothing to do with me. My boyfriend n I are happy but she just keep thinking I’m worried about her. My boyfriend shows me the messages n everything between them and it seems like she wants him there for her more then he can be because of school , work & our baby. But has nothing to do with me , at least I don’t think so. Why she shows him everything I post like me n him are friends n he can see it lol ! I’m truly annoyed ! I’m trying to stay out of their friendship but I feel like she trying to start conflict.