Why I Need a List for some good memories

Sometimes, I just have a argue with my girlfriend, it's normal thing ever. At that time, we always try to persuade each other, but we always failed. Then I think about one question, we have so many good memories together, we have delicious food together, we travelled together, we share the same happiness and sorrows, why we are waste time on arguing? I realize we need a list for those good memories, each time when we argued about something, I just take out this list, I definitely believe we can stop the stupid behaviour, and call back some good scenes.

Why I Need a List for some good memories