I just got to know that she was easily f-closed by a dude who was not even single (discovered later by her) at May. I'm just mad because I went through the usual dating process with her (and by doing so got a delayed and shitty lay in our 3rd date) and feel like my efforts are being directed and wasted at a worthless slut who just admitted to me one ride on the CC.

What's even worse is that the dude she banged was staying at our city only for a few days (so she couldn't have any relationship expectations)

We already have some time together and met through common activities (we both are med students). SEEMS to be low n-count (didn't ask, I only know that she's been having sex for 2 years at most) but has no previous LTRs (red flag, right? only useful for hookups)

How should I handle women's past experiences? I still have my own expectations for relationships even after discovering TRP 2 years ago. Am I just being a whiny bitch?