"Oh, The Guilt" - Bailey treats a young mother battling breast cancer, Derek learns more about Mark and Addison's relationship, the interns defend a resident's competence at a hospital staff meeting, and Meredith and Addison examine a couple who find themselves in a rather awkward position, on "Grey's Anatomy," THURSDAY, OCTOBER 19 (9:00-10:01 p.m., ET) on the ABC Television Network.

From: ABC Medianet

I don't know, but it should be interesting to find out.

Edited to add: Maybe he learns more about the old relationship...like how she originally had the affair?

That could be it, but it'll probably be something that makes Addison look even worse. I hope it's that Mark tells him that the only reason Addison had the affair in the first place was because Derek emotionally abandoned her...

Having said that, Addison cheating is still bad, bad, bad, but so is Derek's... both are idiots. I just think Kate Walsh has done a better job than Patrick Dempsey(whom I LOVE...).

I think they both did make mistakes, but the show seems to think it's Addison who made all the mistakes(they think Derek's only mistake is having had sex with Meredith in the exam room) and that's what drives me nuts. Most people don't just have affairs for the sake of having affairs. There's usually all kinds of reasons and marriages fall apart because of both parties, not just one...

But... but... but... they keep giving Derek outs and I hate that! If he just manned up and said he fucked up too, I'd be cool... instead of acting like he's some kind of victim when he isn't.

You need to stop saying that... logic does not help. Illogic does.

He sucks. He's a dilweed. He needs to die, but it's tel;evision, so I can say that without guilt.

See?

Those help.

At least until I start ranting again.

Again, I'm weird... lol

I work better with in illogic; it's a much better place. LOL

its called Denial Land around.

Sounds like a great place!