Mmm it's more that there's some expectations on who gives the candy to who, since the holiday is supposed to be about love. In Japan, it's the girls who give the chocolate on Valentine's Day, but in America, it seems more like the men who buy gifts.

[As Yuuri leads them into the elevator and presses the button for the first Shopping Centre level, he hums.] I don't think it'll matter as much when we're in space, though. It's the thought that should count, right?