A lot of disbelieve in the comments if polyamory even exists for real. However, I know a long time married (+/- 30y) couple where the wife has a second partner.

A lot of disbelieve in the comments if polyamory even exists for real. However, I know a long time married (+/- 30y) couple where the wife has a second partner. Her husband knows and approves. They are very good friends of us. At the beginning (+/- 15y ago) it was hard on the husband, the alternative basically was to divorce. But he loves her and stayed. She also loves him very much, but she missed something more spiritual in their relation. She now is mainly with her husband, only not on Fridays (although all very flexible). The couple has no children themselves but the other partner has three. The husband and the other partner know each other and occasionally meet on Birthdays and such. We also meet up with her and the other partner. As a side note, the wife is writing a book on her own life. My own wife did some proof reading and she says it is beautifully written (my wife reads many, many books). Hopefully she can get it published.