How is it possible that a girl that was into me for like three weeks, that followed me and started many conversations with me for no reason, to simply stop being attracted to me? I don't know what am I doing wrong.

I kept on appearing confident and funny, but she found other guys to talk to. I was jealous indeed, but I am sure she didn't realise that, I masked it well, kept my frame.

Things went crazy today, nothing happened, I wanted to ask her out but found out that she leaves the town next week. Did I wait too long? Is it jealousy that fucked my game? Is there anything I can do?