Marriage (Harvest Moon: Magical Melody)

From Harvest Moon | Rune Factory Wiki

If your girl (or boy) has 8 or more hearts, then just walk up to them and give them the blue feather, its as easy as that. If they don't have 8 or more hearts they probably wont take it. The next day, you hear bells ring and you automatically engage in an event in the lake summit. Your friends are lined up on the sides and the mayor waits patiently while you and your wife (in nice white suits and dresses) walk up to the mayor. The mayor will ask you if you do (you actually have a choice) and then you both kiss. As you part the villagers will cheer and jump up in the air as more confetti falls.