Is it worth it?

Idk about my relationship anymore.. All we do is fight and scream at eachother frankly I'm tired but I love him so much and I know he loves me. When I'm alone I image us married but the fact that the stupidest things are what we fight over really bugs me. Should I cut my losses before I invest more time in this relationship? 
Update: we aren't married. Just boyfriend and girlfriend of 4 years we are 24