Question for you!

When a guy and a girl are involved. They love each other and they both know this, they even live together. If in the long run the guy and the girl start having issues( they still love each other), they quarrel a lot, and when they argue the guy tells the girl that he is not interested anymore, but note that she is mostly at fault when they argue. After a short while they reconcile and the circle goes on like that, the guy loves her but do you guys think she should leave him?