By the gods, this is so true.
I was just complaining in another thread about the lack of real relationships in games. Catherine took several bold steps in the right direction, but I want to see more of that - preferably with a female protagonist (but then, I've talked about the need for more of those in several threads before this).
One reason I spend so much time playing Bioware games is because Bioware actually lets you have a relationship - and even then, the relationships are often kind of shallow. No matter what other faults one might have with it, Dragon Age 2 actually does a really good job of establishing and developing a relationship between Hawke and whomever the player ends up with. You might not like the choice in characters, but if you do, then that relationship is well developed.
Of course, everyone still wears their insane, uncomfortable, overly complex underpants to bed. But at least it's trying.