Hmmm, that's a tricky one Oz but I suppose that it's a bit like the washing and ironing although certainly a bit more emotion in that than ironing a shirt or folding some socks!
It's a debatable issue of course and you have to go with your gut reaction (esp when PA is not ruled out)however, one thought I was given in coaching was that if you are intimately involved, it's one need you are fulfilling and it is one less thing for him to go elsewhere for.