Relationship Fights: How to Make Love, Not War

I find it particularly annoying when fights between people in a relationship end up in sub-psychotic rage for long periods of time. Instead of settling whatever it is being quarreled about in what should be a time limit of 15–30 minutes, maximum, the irritating spats end up ruining the next day, resulting in lack of sleep and exhaustion for all involved. Unhealthy relationships that lead to arguments lasting all night are not worth staying in.