Originally Posted by Natja
why do you think anyone would want to accept this as a desirable relationship when you know through experience that it is inherently unfair to the new person?
You know, it is just possible that some people are OK with an 'inherently unfair' setup. Hard to believe I know, especially for people who are dedicated to political correctness, equality etc. etc.
But it might just be that such a setup offer something that outweighs all of the disadvantages that are highlighted ad nauseam. The 'third wheel' has a much easier exit route if things don't work out.....
So madeintexas806 has a point. If someone is willing to accept the downsides then why not? It's not for everyone, but neither is polygamy