** UPDATE ***
Regarding Charlie’s line referring to Blair’s father David as “Steve” … Matthew Arter texted me this picture with the closed captioning on. (Duh why didn’t I think of that?) Mystery Solved!
Wait… HUH!? So now we know what he said, but we don’t know WHY he said it!
Either this was a writing flub, or Alex Rocco screwed up his line and nobody noticed.