I’ve been dating this girl for about 8 months. About three months in she brought up the “what are we” talk. I’ve told her that it’s too soon to be calling it serious and we should continue to see where it goes.

And that’s exactly what I’ve been doing. She’s been good to me. Cooking for me and paying for when we go out, so I’ve been upping the amount of time I spend with her, going out more and generally getting closer to her. Safe to say that I start liking her more as time went on.

The other girls that I’ve been talking to have fell to the wayside, a mistake on my part for putting most of my free time into this girl.

Yesterday I came over with the intention of fucking and just spending time together. She’s upset about some things, and says that she didn’t like that I gave too much attention to another girl that joined our group during a night out. She tells me she would rather not know or see if I flirt/fuck with someone else.

This leads me to ask her if she’s fucked anyone else recently. She tells me she has; an old friend of hers two weeks ago. I just feel a pit in my stomach and leave her place.

The same girl that wanted exclusivity from me can fuck someone else the same week that I spend a lot of time with her?

Is it unreasonable to even feel upset about this? What were my mistakes? Is it over with her?

I genuinely liked her and got along with her more so than anyone else. Our sex was amazing as well. I’ve been reading RP and lifting for about two years, trying to become a better man. It still feels terrible to just throw what we had aside.