So, I met this girl back in December. We instantly hit it off, I asked for her number and she invited me to her place that night. I went, we had sex, same night. From then, we went on a few dates together and had sex on each one. I lost my virginity to this girl so I wasn't that great but I think I did pretty well actually, thanks Internet. So we went on, the dates were awesome. Very lovey dovey, hand holding, kissing, lots of cute shit that people in relationships do. The problem is that it didn't work out, I'm guessing it was because the sex might not have been up to standard, but the bigger problem is that since then I've dated a lot of girls, kissed, fucked, all of it since then but this girl is still on my mind. I don't have feelings, I don't feel like shit but she always enters my mind, maybe once every 2 days and I just feel bad that her and I aren't associated at all. There aren't any feelings, just guilt. It might be because I've dated many girls since her and not one has been as compatible as her (despite being compatible, just not as much) so I'm really confused and I don't know how to forget about her. She's not on my social media, so that's over. I never see her in person either, so what do you guys suggest I do? Just keep mindlessly fucking and dating? It's not working.