. . . .As for my wife and I... it makes no difference to us at all if some singles stay at Couples (yes, I know what it's called) to attend the weddings of their loved ones. I'm sure Couples, Randymon, etc... can be trusted to handle this very capably and in a way that will protect all who have an intense dislike of having any single people around the resort. Relax folks, trust the system and trust Couples to make the decisions that need to be made.
You might feel differently if a single male guest hit on your wife repeatedly during your stay and refused to take "no" for a answer. It happened to me several years ago and made for an uncomfortable vacation.