In love

I’m in love with a guy who is not ready for me. We met in September, I thought everything was going ok until he said he wasn’t over his ex after I asked because he was giving signs, I stupidly still had sex with him after that knowing he wasn’t going to take me seriously.. we were back and forth, he’d say sweet things to me before sex that made me feel like it could lead to more and then say some rude shit about how this was only sex and i was usually too drunk to say anything back. He ended up just stopped talking to me out of the blue and I went to get tested and got an std from him and told him. He apologized to me and said it was from someone before me.. later still having odd symptoms I asked him a month later if he tested positive for anything else and he says he never came back positive with anything. So either mine was wrong or his is wrong and I cured mine, I’m not sure. There was no way I could’ve gotten it from anyone else as he was the only guy I was seeing.. anyways…

All this I know I should hate the guy, he was sketchy, not very honest and upfront about his intentions and I should want nothing to do with him but I can’t seem to move on. I constantly think about him, check his instagram, going back and forth wondering if I should delete him all together or wait and maybe he’ll change and want something serious someday. I wonder if it was something I did. I was falling for him because he was so much fun, enjoyed the same things as me, I felt so much chemistry. I even went on tinder and hinge to just try to get excited about other guys out there and I can’t match with a single guy because I’m being so picky. How do I move on? Should I just delete him? Should I ask him if I did anything wrong or is that just embarrassing?