The saying goes something like this:

“We get married and divorced 5 times in our life.

We get married to leave the house.

We get married and divorced when we have kids.

We get married and divorced when the kids leave the home.

We get married and divorced when we retire.

And if we are lucky – it is with the same person”.

– Carl Whitaker

The important message is that changes in our lives (internal or contextual) challenges the evolution and/or contractual understanding of any long term intimate relationship.