Additionally, when Jorah first interacted with Quaithe, she seemed to already know who he was.
During her short tenure, Quaithe interacted quite a few times with Jorah Mormont, revealing to him that the scary magical dude Pyat Pree totally wanted Dany’s young dragons.
But perhaps more significant than Quaithe’s assistance in that chaos is what she was doing while having the conversation with Jorah.
Quaithe is a super mysterious character who only appeared in two episodes back in Season 2.