I know it's passe to like jRPGs nowadays (and most of them are as guilty of this as any other genre, often more so) but you know what game did romance AWESOME? Wild Arms 2.
Yup. The one NO ONE played.
WILD ARMS 2 SPOILERS.
First off, Marina (main character's girl)? Not a party member. Childhood friend, runs a bakery with her mom, Ashley (main character) rents the room upstairs and helps them man the store on his time off. So right off the bat, this isn't the usual "boy meets girl" story. They've known each other for a WHILE. This relatinship of theirs has been a long time coming...
Ashley is training to be some sort of soldier/mercenary/adventurer/special ops kinda guy. He goes off on dangerous missions, and training routs and whatnot. Early in the game he's off to some ceremony and she tells him she doesn't care if he's the best special ops or the worst, or if he passes or fails, or rich or poor or whatever. She just wants him to come home in one piece. That's all. And he promises her that no matter what, he'll come home.
And that promise becomes the lynchpin of the game. To the point that me (and many other players) had a tendency to go back home to visit her after EVERY mission... Cuz that's what we promised. When the ceremony goes awry, and Ashley tries to draw the holy sword, the spirit of the sword asks him if he wants the power to destroy his enemies, or to save his life. Ashley says he wants the power so he can KEEP HIS PROMISE. Their love saves his life, their love is what keeps him moving through all the shit he goes through in the game.
And the heart of the game is a search to what it means to be a hero. Every other character (seriously, like a dozen of them) is a foil for Ashley, each with their own view of what it means to be a hero (to give up your freedom and reputation for the cause, or your morals for the cause, or your life for the cause) while Ashley blunders to find his answer. And he does. To him a hero is a guy who's going to get the job done... And remember to duck long enough to survive it. It's the guy who saves the world and then COMES HOME TO HIS FAMILY.
The romance is dealt with class and respect throughout the game. She is NOT a party member. The plot isn't to save her from kidnappers. She stays home, bakes bread and worries about him. And the scene when the two finally admit their feelings and consumate their love is also dealt with subtlety and taste.
Overall, it was a good, well thought out romance that added to the story rather than distract from it.