To me I think love can overcome most things. I think the major issue I see with your relationship from what you posted is neither of you know how to make a good thing work. Sometimes it takes more then just love. So many people desire to have a relationship as it started out (fun, exciting, loving, cuddling). he problem is they let the mundane take over and they lose the very magic that sparked the attraction and the relationship to begin with.
This may help:
Relationship Thesis
What did you normally argue about?
draconis