My vote is for The Notebook. It shows a real love relationship, they still together until the very end, spite all they went through. That is exactly what you want (if you want to get married, of course)

I know it is an old game, but I remember how amazed I was of installing a 4 disc game (big game those times), the story kept me playing as much as I could until finished it. I'm coming back to gaming after a kind a long time, do you know if there are games like "The 11th hour" out there, please let me know.