Realizing that I couldn't care less about some of the girls I've chosen as waifu status, and then having to go back and figure out who would fill her place only to realize I couldn't care less about the one that filled her place either, or some other various change I made, and repeating this same process multiple times over something so silly that there's no point in even doing in the first place.
BUT IT'S ALL GOOD. Actually, it's less of a waifu list and more of a harem list. Which, come to think of it... some of my earlier choices make much more sense in a harem than in a potential waifu list.