A healthy relationship has room for an open confrontation and constructive criticism. If the couple fights constructively, the arguing becomes less frequent, and communication becomes more effective. The relationship becomes a ground for personal growth. This results in piling up of unresolved anger and frustration on both parts. Besides, bottled up frustration finds its way out, one way or another.
Timing is important.
Don't start an argument just before you are supposed to go to bed or somewhere else. Arguing in front of other people, especially children, but also relatives and friends, is a very bad idea. Allow sufficient time to collect yourselves and to recover your composure after the fight. Take the fight seriously and do not discount the importance of what is being discussed. Avoid irony all together.