What is an "open" relationship.

[nick]

What exactly is an "open" relationship?

[peterinmalaga]

It is a relationship which is not monogamous. Open relationships that I have known have had some rules, like it's open only at certain times or under certain conditions.

[colinmackay]

What exactly is an "open" relationship?

I would say it is polyamourous. One or both parties have multiple partners. Or that the two people in the relationship are mostly together but are permitted to seek other sexual encounters of a more causual nature. Or a whole bunch of things.

As far as I can see, if it works for you go for it. If not, don't.

[marshlander]

An open relationship is only open when both partners agree and know it ...