>>42000690sex isn't just about visceral physical pleasure, it also has the purpose of strengthening emotional bonds, and the capacity to do that is severely diluted when you've had sex with lots of different people. this is mostly a problem for women but frankly I think it afflicts men too, my capacity for pair bonding is basically nonexistent and I can't think of sexual partners as anything more than that, which makes them disposable to me, and vice versa
so of course, someone with a "waifu" would want them only to himself. because that's meant to be, to approximate, a deeper connection, the kind of connection forever lost to the promiscuous
of course, I can only speculate that such a connection actually exists