Can you fix a broken relationship?

by lisa
(tucson,az)

I have been dating someone for two years in a good relationship. In the last couple of months we have been fighting alot and they have been bad.

I decided I was going to keep working at it, but he feels differently.

He left on a trip and came back not wanting anything to do with me. We were also friends at first for many years.

Is there a way that I can fix what happened, or should I just accept it?