The sad thing was that for most of the ep I assumed that the whole payoff to the Worst Therapist In The World was just how awkward Deb was around Dexter. It was funny and believable to me that Deb would become hyper aware of Dexter that way, especially physically (hugging him with no shirt) and her whole "Why are you looking at me like that?" line.

I was reading some other peoples' thoughts who were wondering why they didn't give Deb a good therapist that might have unwittingly uncovered her suspicions about Dexter. That would have made Dexter's "I love you" much more meaningful. I mean, I agree that Dexter's "I'm very fond of Debra" was much more meaningful emotionally, but it was sweet to have Deb herself surprised by Dexter saying the words he's never said before given his secret (Lumen) and not so secret (Harrison) emotional development. That could have made it all the more tragic when Deb finds out he's a killer. But no, Deb instead has to take the "I love you" and run off to crazy shrink to ask what it means. As if it could mean that he's totes in love with her too--squee!!!