Am I over-obsessed with this girl?

I really need some help. I joined this company some 3 weeks ago and met this girl during the induction. Same team, exchanged numbers, she calls me everyday before we reach office. We’re undergoing training so we sit together, we talk after I reach home – sometimes till midnight. I thought its going somewhere, but last week she introduced me to her boyfriend. We partied together at his place. I talked to him some couple of times over phone after that. We’re still the same, we talk before we reach office and also after we reach home and she started sharing very emotional and personal details of her life with me which she said even her bf doesn’t know about. I think about her a lot because I really like her and don’t know what the hell is going on between us. Please help me guys