The other day I ended up having sex with one of my plates for the first time. Things started off pretty casual between us and I originally didn't see much out of her than a nice fling before the Summer. Fast forward to after we have sex and suddenly I can't get her out of my mind. Almost every time I've had sex with a woman, I immediately lose some amount of interest in them ranging from slightly to entirely. After I had sex with this girl I felt an insane urge to have more of her, to lock her down, and make sure I can continue to see her in the future.

Now it's been a week since we last hung out and I can't get her out of my mind. I don't think it's oneitis because I don't feel like shes my be-all-end-all or losing her would be the end of the world. I just really don't know why I'm feeling so drawn to this one girl in particular even though I've casually hooked up with a fair amount of women.

Is it oneitis or is it just really bad lust? I genuinely didn't think I would get this attached to this girl until I actually had sex with her. I don't really know where to go from here with her because I think she wants to keep it casual, but I haven't felt this strongly about a woman since my last LTR. I'm not putting this chick on a pedestal either, I totally understand that she's no different than any other woman out there, which confuses me even more why I can't get her out of my mind. Can anyone give me advice that will help me calm down?