At what point is a relationship not worth it?

The relationship itself isn’t horrible, I just don’t know if I want to put up with the specific problems that I seem to be having to deal with kind of often. I’m not relying on my partner to make me happy, rather I’m just trying to decide if I can live with these frustrations (we are engaged). I don’t feel at peace, but I know that all relationships do take work. It’s nothing serious like abuse or addiction or anything, but I seem to have these reoccurring issues that don’t sit right with me. And they keep happening in different ways even though I’ve talked to my partner about it. Outside of those frustrations, everything else is pretty good! Has anyone experienced anything similar? And what did you do about it?