My opinion: open ≠ cheating or a vice.
Just a quick clarification: this isn’t about dating, it is about relationships (which are synonymous in some cultures, but not the way I’m using it).
When in serious relationships, open relationships can lead to family stability issues as a result of outside forces. So, the husband and wife might be entirely satisfied with the arrangement, but that doesn’t cover outsiders who might not be, and will try to interfere. Outside men will often try to compete with the husband and try to break up the marriage, and when she attempts to break it off it can get a little scary if he decides to push his way in (stalking). Outside women will ‘accidentally’ get pregnant.
The solution to mitigate this is to not do so much of a pure-open Sartre style thing, but have a swinger group where everyone involved is either on the same page or understands the rules. Or, at least involve yourself with people who live in this paradigm.
Some of my family members and friends are involved in successful open relationships.
I describe myself as a little dose of toxic masculinity.
