Can you be bisexual with no sexual attraction?

I'm a girl, and (this is a terrible example haha) but I keep talking to this girl on Twitter (idk if she's bi/lesbian/straight) but whenever she puts <3's or ;)'s I feel like...satisfied? I'm not sure if that's the right word. Maybe like...kind of have butterflies? I'm 14, btw. But I have absolutely no sexual attraction to girls. I think some are pretty, but not "hot" or "sexy"... I have never REALLY felt anything towards any other girl in real life, but I have kind of wandered what it would be like to be bisexual... Opinions please??