I didn't like Bill's response to Lee about Kara leading the squadron in the lighter scene. "Because you're my son," was meant to be sweet, reassuring response, but it didn't come across that way to me at all. IMO, there are two ways to interpret his statement.

I felt the same way. I know I'm projecting my own parent issues here, but this response wouldn't reassure me either. It would only confirm my doubts that I'm valued not for my abilities, but for my DNA. Issues much, huh? On the other hand, your family members can be the only people who love you unconditionally and that's another side of the coin. [shutting up now]