break up

My boyfriend and I just broke up on the 19th. We'd been together 8 months. The relationship wasn't going anywhere because he doesn't have the time. He is so busy every single day. I told him that if he couldn't figure out how to balance work and me then we'd have to break up. Work was getting 80% of his attention while I was getting 20%. Obviously, our relationship would've been a lot more successful if he wasn't so busy and paid more attention to me. But, it didn't work. I miss him a lot. Neither of us wanted to break up so that makes it even more difficult. I just don't understand how he can't balance it. I mean I do understand, but I feel like if he wanted to he'd find the time to see me. I know he cares a lot about me and I care about him so much. It just doesn't make sense