If both parties agree to it, then it’s fine. Some people have open relationshipb without the other person knowing about it.. like REALLY?? ?? ” WE DIDN’T AGREE ON THAT LOL” having an open relationship can cause a lot of problems.. I just can’t understand how a relationship even come to that conclusion.
I feel like things would get too complicated due to jealousy. If you’re the main lover and you invite someone else into the relationship, then the new person becomes the main lover and you become second, jealousy will come into play and things become complicated. Or what if the new person is a better partner or lover…. How well will that play out?