So my "ex-gf" and I have been on a break right now cause she said "she isnt ready for a relationship yet" and I can understand that seeing that I'm a jr and she's a soph in high school, but now although I'm still attracted to her, I have become very attracted to her best friend who introduced us. And I'm pretty sure her friend has some interest in me seeing that we talk very often, usually more than I talk with my "ex-gf," and we usually joke around how her h/u with me would be really weird, but we seem to be getting closer to each other. And I know my ex still has some interest cause she found out that I h/u with another girl this weekend after a party, and we discussed how I was drunk and I apologized, but she was still shocked. But now I don't know what to do I really like my ex and would pick her over any girl IF she was more mature and ready for a relationship. I also really like her friend and we connect so well, and I know she is more mature... what do I do?