Blindsided Breakup i don't know what to do and how to move on

One morning my BF got up like every morning, told me he loved me and will see me later, then left for work. In the evening he came home later than usual and out of the blue told me he had to break up with me and he had made his decision and that i couldn't change it - then he left. A few days later he moved his stuff out and told me he didn't see a future because he lost himself and one of us would always have to bend in order for it to work which he didn't want and that neither one of us could be like himself with the other. Which is simply not true. I always felt like myself around him and loved him from day one just the way he was. Things we had to compromise on I would've been willing to change if I knew he wasn't happy with our solution. We had regular check in talks and just two days prior he told me he is happy. I never asked him to bend in anyway I never would've because I loved him just as he was. I was convinced we could and would talk about everything and find solutions for issues we might have along the way. I don't understand whats happening, why he would blindside me like that and why he has himself so convinced of a reality that is just not true. if he had ever tried talking to me we could've changed every single thing he was worried about and I still feel like i would've deserved a chance instead of him just throwing it away without telling me his thoughts and worries first. I don't understand how he can just leave and tell me there is no other way if he hasn't even tried and why he doesn't see that he didn't even try