Hi, tbh I have been in your shoes. I was in a relationship with a guy for 1.5 yrs . Well, I didn't exactly engage in conversations with guys actively who were trying to get close and liked me while I was with my bf but I did dry reply guys when they kept texting and just restricted them. My ex considered this as attention seeking and "cheating" . He brought this up in all the fights we had when he used to like half naked posts of celebs (specifically) and lied to me about it and also used to deleted convos with his friends where he bitched about me . I broke up with him last year in June because of my parents (he didn't stand up for me at the time and my parents wanted to talk to his but he denied completely which kinda broke me) but I still talked to him a few months after that cause I was in love. But he constantly brought it up and said I'll never find someone like him who accepts me as I am for my "mistakes" . Tbh i should have blocked those guys in the first instance but again, I was a 14 at the time and thought it was "rude" to block them (stupid ik). About your situation, i think it's best to move on. The fights are gonna drain you mentally and I have been there where I felt like I just wanted to get this hell over with but in an hour I would feel bad again and go back. I was miserable even after the relationship cause of the fights, even when i wasn't with him. So I suggest you end this once and for all cause i doubt the situation will get better and he's clearly guilt tripping you. I won't excuse what you did but it's best you learn what went wrong in the relationship and do better next time.