Ah, okay, thanks. On re-reading my post, I realized that half of it sounded ridiculous. I've beaten the game once already, and I already realize that marriage supports are S only. I must be more tired than I realized. :P
Another question: are the images used for the Avatars/children locked in the first time they're entered into the library? Like if my Ava has red hair one playthrough and black the next, does the game lock in the red-haired picture?