24 years old, 6'5", med student, confident, funny, never been in a relationship and never wanted a relationship until recently.

Met this girl on tinder and fucked her for 2 months, super casual, never even took her on a date. Developed strong feelings for her, decide to date her. She tells me later on she was fucking some other Chad the entire time, unprotected too. She then tells me she's not sure she's attracted to me and all other sorts of weird shit; tells me she's slept with some pretty successful people and all sorts of other stuff to try and make me feel like shit. Easy solution: dump the slut and move on, right? Wrong.

Fast forward 6 months and I'm still with this girl. What the fuck is the matter with me? The whole "her fucking someone else for the entire time while not wearing protection" thing is still fucking with me. Need some serious help here.