confused & sexxx

So I feel really stupid I've been involved with this guy for 5 months now we were only getting serious in one of those months and before that I was just scared to be anything with him bc really complicated anyways me and him ended in September but talked still abit after and then I blocked him out of my life for a couple weeks and then somehow he came back into my life in November and after all we been through the horrible he treated me both bad& good in November we hanged out again and had sex and I feel oh so stupid bc literally went over there to have sex and that's all and he didn't talk to me at all after having sex and then I was like do you want me to go and he's like well yeh I've got plans at 4 so I left and as soon as I left his house I just started crying I couldn't help it I felt so hurt and couldn't stop crying anyways after I left his house he didn't talk to me since he literally blocked me out of his life and didn't talk to me for nearly a month but on my birthday (December the 1st) he messaged me out of no where and said sorry and I just couldn't believe it like he ruined my birthday with that message like he literally ignored me for a month after me and him having sex and yeh I just came here to rant cause I don't have anyone to tell this too and anyways I feel so stuck inlove with him like no matter how hard I try to get him out of my head he's always there I just want to not be sad about him anymore like anyone got any tips how to get over horrible guys cause I'm so stuck