What to do in a engaged relationship stay or go?

I have been dating this guy for about 3 years. We had been dating for 1 year, then got engaged, and we have been engaged for almost 2 years. Thing is, Im not sure for whatever reason? I am usually very independent, but i did let him in, hes a great guy- Cooks, Does Laundry, Works hard, and would do anything for me. I care about him alot but we bicker and fight over the stupidest stuff, and its gotten to the point where I feel like its everyday. I dont want to let him go, but at the same time I do. I dont know if its because Im comfortable that I stay or because I really do want to be with him? If so, I need to stop dragging my feet and get married? Confused About Love