A burning desire to know?

have you ever found yourself falling for a guy with good looks, confidence, brains? i have and even though i havent seen him for years, i still think about him once in a while. i guess i am still infatuated with him. i dont consider it to be love because i dont know him. i know some details like where he lives, how many sibings he has and etc. i also feel like i know him more than himself like his qualities and etc. recently i got back in touch with him, and i suffer from bipolar which includes delusions. sometimes ifeel like he is standing below my balcony cursing at me. in reality he secretly had a crush on me but ignored me so as not to reveal his feelings. i had a chat with him and at first he was nice, but then he said something hurtful and we havent talked since. i know his good side but i know his bad side which manifests itsel 90 % of the time. do you think i should move on ?