I don't yet have a huge list of things that make me wonder whether or not I do them in my real life, but I've just added one to it: Assuming my activities are more important than my girlfriend's.
Obviously, we all do it, because in some ways it's impossible to not be egocentric, but we usually hide it a little better. Then again, I suppose Ray and Liz have been together long enough that it's not really a big deal when he calls to say he's going to be a bit late for the party because of a west-coast conference call and, oh, by the way, make sure you have next Friday off because one of the partners is retiring and it would look really bad if we didn't attend the party.
I don't mean to make Ray sound too bad - he apologized profusely, there will probably be flowers in the living room when I wake up tomorrow, I'll get taken out to eat at someplace expensive on my next night off. And, honestly, I've had girlfriends who do the same thing. It's just something Zoe complained about the other day, with a "men!" attached to the end.
Ah, well. Hopefully this makes for good novel fodder.