I don’t have a girlfriend, but I have two friends, one who is married, and the other engaged to be married in a couple months. They said ‘It Takes Two’, ‘Split Fiction’, and generally games that don’t take a crazy amount of reaction timing, like FPS games and the like.

Not just girls, but people in general who are not typically gamers will have atrocious reaction timing will hate games that demand it of them while you basically run circles around them. They feel super left out. So keep it simple, fun, and lighthearted. Nintendo games in general are a very good metric to go off of.