I hoped he would be like WHAT JOHN'S WHO'S SON NOW??? DIDNT SEE THAT COMING and then shout the name, too, like he was one of us.

killing a khal makes you the khal and dany is now the khal of everyone

But when he looks at the coal scuttle she quickly removes her magic necklace and becomes crane version.
then he looks again and is, like, Oh,old crane, have you seen a red woman by any chance?
she ran in that direction…-
what direction?
where shireen is standing! -
it has been you all along!!
and then he tries to kill…

I think she may have given someone her face who wanted to die and hides in the shadows now to surprise attack the waif