I've been in a relationship for 4 years (I'm 25 now and this was the only relationship I've had so far) and now it's over because he felt we are going nowhere... We had some arguments about how he should offer me more of his free time (but not worse than others we had in the past) and after a few days of tension I wanted to have a discussion to solve the problem. Instead of making up, as I was expecting, he said he didn't want to continue this... after 4 years!!!
I tried to explain that I'm willing to sacrifice (he wants to start his own project, besides the job he has and that would have meant even less time with me) and that you just can't walk away after such a long time, but he was just looking at me coldly saying that he couldn't really explain it, but he was very sure he doesn't want to continue.
I feel like my life is falling apart. I really thought we were going to last. We were talking about having a wedding at some point and now he had changed his opinion radically.
How is it possible after so long to just walk away and not care anymore? Nobody who knew us and found out about what happened could believe this was the end for us. We really had a solid relationship and this could be seen from the outside.
I just don't know what to do to make all the hurting and anger go away. It doesn't seem fair to me that I dedicated myself fully to this relationship and that I didn't even get a real explanation of what happened to him that he just decided to let go.
I know there's no other way for me than just move on, but I just don't know how to do it. Can anyone help?




), that I should only date casually?



