There are hundreds of different story lines and seven different outcomes — and most of them end badly, with Trip, Grace or both kicking you out of the apartment. But there's one ending, extremely rare, that can almost be described as happy.

The disgruntled couple argues, as usual, over vacations, home decor, jobs and even wine selection. But then, after a shift in tactics by the gamer, they launch into an emotional, loud and occasionally profane fight. You can almost sense the moment they let their guard down.

That's when Grace admits to a lingering depression and concedes that she has allowed Trip to dominate their relationship. And Trip admits his materialism is rooted in his experience growing up on the edge — including living in a shelter for six months.

They finally come to terms, a hesitant truce, and agree to talk about their problems.

But this time, they talk alone.

Thankfully.

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On the Net:

Georgia Tech's Facade: www.gvu.gatech.edu/arfacade/links.html

Human Interface Technology Laboratory New Zealand: www.hitlabnz.org/