I woke up on the couch in a relatively nice home with a rather attractive woman, who I'm assuming is more than likely my girlfriend. Neither of us are wearing rings, so my guess is that we're not married, but are at a point in our relationship we're both committed to it enough to buy a house together. Of course, I suppose there's always the option that she's related to me, but I doubt this is the case, as there are no signs of us being related, and I do think I'd have some natural intuition if she was.
Yes, I'm aware that I'm more than likely over-analyzing the situation. But I think most would agreee with me when I say that in this case, over-analyzing is better than not coming to any assumptions at all.