Hey,
i recently had some time to play a game with my girlfriend, which, if you haven't already played too, i would i highly recommend to you: "Undertale".
It's plain awesome.
It's a 2D kind of adventure, but with the twist that you dont actually have to kill anything. And alternative endings, depending on what you do.
I usually dont like 2D games, but this must be the best i have ever seen or played of its genre.