First, I was quite surprised at this. I am sure that this game is purely for adults (at least I hope so) and that the game becomes more interesting because it's dealing with real-life situations. Enemies could be lovers as they say.
A video game, named Dragon Age: Origins is one that recently came out according to Queerty. It was amazing to watch and I was actually taken aback. Apparently, you choose the words that the characters say and given the right choice of words - it pretty much evolves into something as surprising as the scene above.
I play video games and granted, WoW didn't stick with me but with games like this... who knows? :)
Take a look - follow the whole dialogue and view the complete clip here.