I'm more of a wargamer, but I play a couple RPGs, including my own, which has an old-school feel (if I was successful). Since it is set in the 1980s and in high school, romance and dating are meant to be a part of the game. In the advanced rules, romance is one of five areas where you can focus your energies in-between scenarios or during down time. (The others are fitness, academics, economics, and leisure.) One of the game's scenarios, Masquerade Dance, has elements of romance, and is designed to be played by a girl PC who just suffered a break-up, although the GM can reverse the roles for male players. The rules treat romance as flirty and fun, or tough if you're not in the popular crowd, but since GMs and players can do what they want, they can get raunchier and heavier. But in the books, I keep the romantic content at a PG level.