Maybe you’re just not excited in the relationship anymore. If it starts being the same thing over and over again, sometimes people will subconsciously purposefully start fights or find reasons to break up just so there’s SOME excitement in it! Try doing some spontaneous things together to regain the spark. :)
If that still doesn’t work and you are having the same feelings, but are still unsure if you want to fully break up, try going on a break to sort out your feelings and figure out what you want to do.