I didn't catch if they explained how Blake found out about Kenny, but her addition definitely added an interesting new wrinkle to their relationship. I'm curious if he is actually going to end up being turned into a vampire or if something else will happen to him.
At the end was Blake referring to Aiden or a different vampire?
Blake said she followed Aidan to the hospital to find out how he was surviving the flu famine. And, at the end, she was referring to Aiden killing Liam's son, the purebred.
And I suspect that Sally's problem has something to with the fact that she's hungry all the time. They wouldn't keep mentioning that every episode, and show her stuffing her face all the time, unless it's going to pay off somehow.