Apparently not a popular topic at the moment while everybody else tries to keep their marriages together..!
But an interesting discussion idea Elenaki! I think the media burp this sort of story up every so often, I read something similar a while back too and duly discussed it with DW... I think I liked the idea of having an extra female around, especially as the article I read featured a bloke who had a live-in girlfriend. I was thinking, wow - an extra wage (potentially), more help with the kids, babysitting would be a doddle, the school run ditto. Great!
Of course when DW pointed out that she could have boyfriend too I was slightly less enthused. (Men being less good at household organisation - and what if he was better in bed than me?)
But when we'd talked it through, I think I decided (I can't speak for her...) that the worries you would have would mainly centre around being left for another person, which is not quite the same as jealousy I don't think. As the article says though, this may happen anyway...
And I think this is where the central taboo comes in here - bear in mind I'm thinking out loud here. I think people get the idea of doing this sort of thing so you can sleep with other people. But what about love? It seems that there is a taboo about loving more than one person at once. In essence, you can't, it's not allowed. But clearly it happens...
There's a bit in the article about this but not much solid evidence that love is so easily shared as bodies...
Another thing - I adore my DW and could never leave her and we've had our fair share of problems... But for many people marriage and monogamy are clearly a form of torture.
Perhaps this sort of thing will grow and become a sort of safety valve for marriages - where it's vital couples stay together for their children but they are often forced to separate, after an affair say, because of one partner's insistence on exclusivity. (Which will fade in line with the fading of belief in God/religious rites etc???)
Or something.