I Am A Bad Friend

I'm a really **** best friend, right so my best friend just broke up with his girlfriend but I'm also friends with her so we were having a sleepover last night and just talking with my other friend and I said something that had nothing to do with me but now I've messed up my relationship with my best friend because it was about when they were together and my other best friend go hurt because it was when the first best friend said to to his ex when they were still together he liked my other best friend and I just told her this thinking it wouldn't matter because they aren't out but now I have lost two best friends and I'm just ****.