Girl in 20s and my boyfriend of 2 years cheated on me for 9 months... i found this out from the girl who he was cheating with.. i asked him why he did it? While he was on holiday enjoying his time with his friends.. i was here crying and asking for answers... all he had to say, that he thought i was doing the same thing to him..i didnt understand why he would think that.. then i did. he didnt like me talking to any guy whatsoever. He used to be controlling to me while he was with another girl.. he apologiesd and said give him a month he will sort everything out and he wanted to be with and not her..after he came back from holiday we met ended everything with him but after a day of breaking up with him..he came back to me saying he loves me and would never ever cheat on me again..i believed everything he said ...he said he has ended everything with her.. but after few days i got in touch with her... found out he was telling her the same thing he told me..we comforted him together but all he had to say was that he loved me but couldnt trust me at all so he went for her again..but then he wanted me back and started loving me..so he stopped talking to her and ignoring her.. i didnt believe him at all. But after a few days of breaking up he did go for her ..then he came back to me again saying he never felt right with her..he didnt love her..he loved me..he wanted to trust me again..he said he loves me and he will do anything. He has given me his all social media password , lets me check his phone, takes me out on dates and holidays..but there i still have doubts on him cuz he has broken my trust so many times i dont know what to do..i love him so much with all my heart..i really dont know if his gonna change or not. We are together again but it just doesnt feel right at all.. what should i do?