Oh, interesting question!
For me, I think it would depend on how you define "fight". We get upset with each other and have bad times, but we don't really "fight". No yelling, no throwing things, no name calling. But, I do cry when I get upset, and though I can't help it, he thinks I'm hitting below the belt.
Ironically, our biggest "disagreement" is about how he treats me. He is a lot more reserved than he used to be, so I get hurt that he doesn't try to spend special time with me as much any more- since he got this new job sometimes I think he loves it more than me!
So then I talk to him and am upset, which makes him upset, but we work it out. Would you call that a fight?
We knew when we got together that communication was very, very important, so even if we're really upset, we always say "hey, we need to talk about this", and we don't really end up fighting.