The five stages of a relationship are the Merge, Doubt and Denial, Disillusionment, the Decision, and Wholehearted Love. Every single relationship moves through these five stages—though not only once.

How long does the fighting stage last in a relationship?

The Power Struggle stage can last anywhere from a few months to many years. Ive worked with couples who have been stuck in the Power Struggle for more than 50 years.