Historically, this was one of the first mods to expand marriage to non-traditional NPCs, though it often required significant patches to work with newer versions of the game. Looking for Love:

Because this mod fundamentally changes her age without an in-game mechanic, some lore purists dislike it. However, for players wanting immediate results, it is the best choice.

: New custom events at 2, 4, 6, 8, and 10 hearts.