Side chick

Soo im pissed as hell right now. My boyfriend and I got back together after 8 months and while in those 8 months he and this girl had sex and they supposedly were best friends while they were fuck buddies. Any who after we got back together he told me about her and he told me that he already cut her off and she got real mad and she was gonna send me some stupid message and told my boyfriend “Bet I wont” and my boyfriend told her “I swear you better fucking not, what we did in the past is the fucking past, forget about it” soo she ended up not sending it but then I thought my boyfriend and her were not friends after that because of what she was gonna send me but then he tells me that-that girl texted him saying that she was kidding and she wasn’t for real about sending it to me and that she still wants to be friends with him because she tells him everything and it was hard for her to let him go and idk what other crap she told him but my boyfriend didn’t tell me about it till now and before that i had told him to end their streak and he told me he was gonna do it but then it happened that she texted him saying that she doesnt wanna lose their friendship. I told my boyfriend that i don’t want them to be friends because obviously she doesn’t fucking like me and neither do i and he tells me that they are just friends and how am i gonna come and ruin one of his best friendships right now because he is one of the few friends that actually listens to her like wtf. I dont want them to have any type of contact like why cant she understand that he already has a girlfriend and has to put her damn distance, like bitch go find another damn friend that listens to you and leave my boyfriend alone. Why cant she understand that its not the same no more, he’s not free AT ALL and that she cant be texting him like she did before.