I suspect some of these Guests are regulars who don't want to compromise their partners.

It's possible that you might need more than one person to satisfy all the various human requirements, and that it's unreasonable to expect to find it in one person. If you have done, it's good luck.

I'm NOT saying that you need sexual relations with the various others, though again not ruling that out. If you're open and honest either way, perhaps you can make it work.