Helppp ex alert!!

Ok so the i had a boyfriend and we were together for a year and a half almost two, im 16 btw, my parents knew about him and he got along with my the family really good but he had a reputation before me and throughout our relationship he never cheated or so i thought because in our lasts months of dating he cheated on me with a girl a already knew (side note I live in a very small town were word gets around easily and everyone know everyone) it was at a party and some friends told me about it but i didnt believe it, weeks go by and various people start asking me that how inwas and if i was okay and i was confused so i asked them why should i be sad and they explained me he cheated again, this time i didn’t fully believed it but i gave it the doubt of hesitation so i “talked” to him about it and he denied it. The next day after my birthday they send me videos of them making out so i broke up with him and immediately started talking to this guy who was only a friend. He (my ex) believed that we were together and started trashing on me because of it and my “friend” didnt help at all because he was also telling my ex we were something when in reality we weren’t. My brother and i celebrate our birthday on the same month so two weeks later my mom invite him to my brother birthday and he went only to trash on me again. He kept saying it was my fault that werent together anymore and so on. Three days before new years he comes over to my house almost begging for us to get back together but i denied him (as i said before i live in a very small town, and every year there is an “after party” for new years that starts at 1 and ends in the morning) i knew he was going to be at that party and i wanted to go with ny friends so i decided to go over there he was doing everything posible to get ny attention and he started to make out with the girl he cheated on me with in front of me trying to get me mad but i refused letting him ruining my night. About two to three weeks later he asks again if we can get back together and i denied him again; its been three months since we broke up i am sure i love him and i miss him every day and honestly i would love to get back together with him although i am not sure if it would be the best idea he says he loves me and he regrets everything wring he dis he even told me he just wanted to get my attention by making out with the girl but im not sure honestly i would just like to get over him because i still love him and they are days in which i feel i only love him more and more and i hate myself for doing so even more after everything he dis to me but i just cant get myself to get over him