Fight it out or ignore it. Please read it before voting

So we have been together for 5 years (know eachother for 17) not married, even though I wanted to be a long time ago. We live together, I have 2 kids from previous, their dad is not in their lives by his own doing. The last couple years have been rough. Everytime we fight ( not violent or anything just arguing as couples do) it gets interrupted by work or kids or whatever and it never gets resolved. When I try to resolve it, he tells me to let it go. It's getting to the point now that we are annoyed with eachother alot and questioning if we are even compatible anymore, even though we love eachother. We are going to plan a 2 day get away and I'm trying to figure out what the best way to do is. I wanted us both to make a list of everything that is great and everything that is not working for us so we can fight it out without interruptions. I also want to just enjoy our alone time together. Maybe a day to fight and then a day to make up. I also am done with the back and forth and wanting to know if we are going to make it work or call it quits. What do you all think?