SauRoNZA
Honorary Master
A lot of sense in your posts.
In my experience most women (and a higher proportion of men than will admit) are bisexual. So if are in a relationship with such a person, why insist that they shut down that side of their sexuality? In fact, like expecting teenagers to abstain, it's just not going to work. Either they will do so and be unhappy which may cause them to leave the relationship, or they will get their kicks behind your back. Even if you never find out there will be strain on the relationship from guilt and secrets.
In my relationship we are headed towards marriage as we are very close, share the same interests and function very well as a team and it would offer more security and continuity for my child if something should happen to me. That said we have been non monogamous from day 1 (well ok day 8 actually). We only play together which eliminates the jealousy if one partner is out on a date without the other.
I'm not sure sexuality really makes much difference to the equation short of it sometimes being easier for the other partner to "let go" if it's a same-sex attraction rather than one the same as their own where they would need to compete.
Especially when it's a male that is expected to allow things, they struggle to deal with another man getting it on with their wife.
Some people are able to be monogamous for life without feeling the need to stray, and that's fine for them. Most of us don't seem to be able to do that. So if a couple is ok to admit and embrace that I say go ahead. But relationships are harder than being single. Open relationships/swinging are harder still. Polyamory is probably the hardest.
I just wonder how many of those aren't truly happy with themselves and simply suffer through it and how many are legitimately fine with it.
You are right on one thing though and that's the fact that it's harder (and that's not a pun) to be in an open relationship and not the cop out easy path most people would think it is.
Polyamory is different and I kind of think the next evolution of an open or rather non-binary relationship where the third party becomes part of the family nucleus and everyone works together as part of the same team. My wife and I would have loved a second wife in the house just to make it easier to get **** done and this is actually a non-sexual concept.