I'm not sure - wasn't there a scene a week or two ago where he was watching Dee and Billy?

But that look came out of nowhere. At least for it seemed so forced on Lee's part.

When/where/which ep was that?

At the end of this episode when Dee was sitting with him. I'm not so sure he didn't see Kara walk in.

Dee seemed weird. She was acting like all of a sudden they were in a serious relationship.

Dee is acting like some flyboy fan girl that I just wanna smack. Scratch that I wanna shove her out of the nearest airlock. And I liked Dee before this.