Games Role-playing Romance
It's highly group dependent really. Some players don't want romance in their game, especially if it's all men playing around the table.
My gaming groups have a really decent mix of male and female players, and we have games where romance is a big part of the game, and games where it doesn't turn up at all.
For example, I'm currently running a game called Monsterhearts, which basically takes the premise of all those teen supernatural romances and asks, 'What if these sort of stories actually took place with real, messed up teenagers trying to decide who they are and what their place in the world is?' Questions of who's dating who, and who's popular and who's not and the like are all very relevant in that game.
We just finished up playing through The Flood campaign for Deadlands. There was no real romance in that beyond a brief flirtation between my character and a woman we knew was an official of an evil cult. A flirtation that we all knew would never go anywhere, but made for a more interesting scene.
Personally, I like including romantic subplots in games I run. It makes the characters and their situations more real.