falling for a guy who isn't even mine😩😩

Shàntae💋
So there is this guy , we go to the same school but only thing he is a senior and I'm a sophomore. He has a girlfriend and I'm single but we've been talking on the low . He picked me up from my house Friday night and we chilled and now I think I'm in love with him 😭😭😩 what should I do? Should I leave him alone or keep on fw him