I got a girlfriend for almost 6 months now and i know i can trust her and i do, but before we made it official a different guy also tried to get her as a girlfriend. She rejected him but i constantly live in fear that he tries to make another go for her, i know this is probably just stupid but i live in a sort of anxiety because of this fear. I love her very much and everything goes well but in the back of my mind it keeps bothering me.