Some Principles for Constructive Conflict Timing is essential. Under these circumstances, wisdom may very well indicate the need for waiting until the next day or at least until the situation has cooled down some. Do not gunnysack.
Some people are injustice collectors.
That means they wait until they have a gunnysack full, then dump the entire load on the other person. Try to avoid this over-kill by sticking to one issue at a time. Recognize where others are vulnerable. Hitting below the belt only succeeds in hurting the other person. It serves no constructive purpose.