I didn't see the co-host chat, but I have heard (and roses has just confirmed above) that things got a bit much during that segment and some have perceived Clay as being rude to Kelly.
I think this might have set them off on a bad foot and Clay commenting early into the interview with Emmitt and Cheryl that he hadn't had a chance to say anything didn't seem to please her either.
I don't know whether Clay has co-hosted this show before, but if he hasn't perhaps they should have coached him or given him a bit more guidance as to what his role was expected to be.
I see the guest hosts as very much the back-ups to Kelly.
She takes the lead with the interviews when Regis isn't there and often when he is, but I feel that she dominates the chat, he generally takes the lead in the interviews.
Did they want him to ask questions, or just to basically sit there?
It seems like they were at cross purposes with him thinking he was meant to participate and Kelly not really giving him much of a chance.
To then follow up with "let me know when I can say something", just appeared to annoy her even more.
With regard to her waiting the weekend to say something, I didn't see the show on Monday so I don't know how that came about.
There has been talk about this on the internet and for all we know Kelly might have received some of those legendary nasty Claymate emails so she felt she had to say something, I don't know.
She did tell him in what I felt to be no uncertain terms on the show that she wasn't happy with what he did.
He instantly knew she was annoyed because he asked her if what he had done was "a no-no".
I think it was pretty crystal at that point that she wasn't pleased, she addressed it instantly.
Why she then felt the need to say anything in addition to that on Monday's show I don't know.