Avoidant slowly ghosted me and then broke up with me after 3 year relationship

I really just don’t understand why he did this after 3 years together. We’ve been long distance by 5 hours and he put a lot of effort and money into coming to see me and planned our future out with me and I really am just blindsided, last time I saw him everything seemed fine, we did have a small argument about future goals because I disagreed on 1 thing and he didn’t like that but I didn’t know in his mind that that was my last chance but everything seemed fine. After I went home the next day he started being really distant and staying at work late and was kind of blaming that as to why he wasn’t FaceTiming me at night like we do every night, that went on for 2 days and we called the next day on my lunch and he took so long to actually get on the phone that my lunch was almost over and he lashed out on me for basically just being anxious and saying that if he didn’t want to call me he could’ve just said that so I started avoiding him because I was hurt that he got upset with me for that and was basically just looking for all the bad things in our relationship so I didn’t talk to him for 2 days the next day he says even though we’ve been disagreeing on things that he does love me still and I said idk and said I feel like you want to breakup but you just won’t say that, at first he seemed like he thought it was Best But didn’t want it but as I started to plead with him on why we should stay together and that we can work through these things, it just pushed him away more and he said he was certain on it and the only reason that I’m compromising on things now is because of the circumstances of him breaking up with me and just kept going back to that, as the days went on unfortunately I continued to text him and plead and he just grew more and more cold and seemed like he didn’t care if I even would pass away. He was mean and firm in the end and I really believe that one of his last texts to me he used chat gpt and cleaned it up because I know he’s done stuff like that before with other people and he’s never written a text that long in our whole 3 years. I do know he buries a lot of emotions because he’s had a lot of grief in his life and that’s just how he handles things but I just didn’t realize he’d do it to me. He had 2 other exes before me 1 of 2 years and she cheated on him and 1 of 6 months and she was controlling and he broke up with all 3 of us. He went about a year in between them and then 2 years before he found me and we were each others firsts and I’m honestly just so blindsided by this and hoping to hear other peoples experiences and opinions with similar breakups. I just want him to come back even though I know that he’s toxic and I’ve caught him micro cheating multiple times. We’re now no contact I blocked him on everything but his number and I just hope he’ll come back to me, to all of you with a similar experience, did they ever come back and were things better, worse or the same?