Continue writing the next sentence.

How to stop fighting in a relationship
Own up to your part.
It's easy to find fault in your partner and think of all the ways he or she has let you down. But be honest with yourself: is this helping you in any way, or helping decrease the conflict in your relationship? Let down your defenses in the height of things.
While it may feel counterintuitive, it's quite effective. Don't be afraid to admit your wrongs.