You like being with guys and girls. You’re attracted to guys and girls.
You FELL for a girl.
That doesn’t mean you’re a lesbian. It means you fell for SOMEONE. It just happened to be a girl that you made your first real connection with. It was either going to be a guy or a girl – 50/50 chance there. You’d probably be panicking about being straight if this was reversed.
This doesn’t mean you won’t fall for a guy in the future. Male/female – it doesn’t matter. You made a connection with someone and you should take advantage of that because connections like that are rare, we don’t find them often, so when we do, we need to do everything we can to enjoy it and immerse ourselves in it to the fullest.
Whatever happens in the future will happen, but what does it matter? Are you suddenly going to stop being attracted to boys because you’re dating a girl? You’re going to declare yourself a lesbian and then your sexual attraction to the male gender will just magically disappear? It doesn’t work that way! lol. You just happened to form an emotional (as well as physical) connection with a girl first. That’s all.
Stop worrying about the lesbian/bi/straight bullshit. The older you get and the more people you meet, the more you’ll start to understand yourself, and you won’t be so concerned about being exactly “this” or exactly “that” anymore.
The world is not black and white so stop trying to put yourself in a box that doesn’t make sense. Focus on this girl and all these new feelings you’re experiencing. Nothing else matters. Be with her. Be happy! 🙂