Nathan Drake
She's 14 and claiming bisexuality? I'm betting she's straight as a rail. Almost every girl at that age is bisexual as far as they are concerned, yet barely any of the girls I know that claim bisexuality have ever so much as given more than a friendly hug to another female, yet date boy after boy. I think it is more of an attention thing really. Some claim bisexuality and come out at the other end of the tunnel, but the majority seem pretty confident in the gay or straight situation.
Some people look down on a senior dating (what I assume to be) a freshman. Really though, that age difference is nearly nothing. I've seen my friends date with bigger age gaps. If you're happy and they're happy, that's all that should matter in the long run. On that note, don't dwell. Give up on the notion that you will ever be with the other girl. She has proven a lack of interest, and you have let yourself care too much at this point as it is. Focus on the girl that cares, not the one that brushes you off with a complete and total lack of interest. Pretending that there will ever be anything there will just harm the good thing you already have going. This girl obviously likes you, wants you around her, and is attracted to you. I would hope that you're also attracted to her (as it sounds like you are).
Don't let what never was stop you from pursuing what is real and right in front of you.
Aug 7, 2011