Why do sexual utopias always fail?

[QUOTE=Captain Amazing]
I think that when most people talk about unconditional love, they sort of add an implicit disembowlling exception. They really mean “almost unconditional love, but if you try to disembowel me, we’ll have to have a serious talk about the future of our relationship”.
[/QUOTE]

I made sure to put that specifically in the wedding vows.