Revenge now has had two non revenge of the week episodes after beginning the show with five. Mainly, these two episodes have dealt with Frank and his investigation in Emily. At the end of the episode, Frank is dealt with and no specific knowledge is leaked, though Victoria will surely be more suspicious than ever.
We learn how the real Emily Thorne swapped places with the real Amanda Clarke (the Emily we've been following), and now the real Emily is at fake Emily's house. Yeah, this is going to be more than awkward. Undoubtedly, it'll be very hard to keep things under wrap, especially with Victoria poking around.
Of all the characters on Revenge, Declan is easily the most unlikable. The writers want to make it so that Declan's the only honest guy and that may be true, but being honest doesn't mean he has to be a prick. He doesn't need to that outraged, offensive tone whenever he opens his mouth. How would he like it if everyone told him the truth every time they see him that he's an idiot?
Finally, we learn explicitly what's going on with Tyler. He's gay and Nolan is as well. While Tyler believes he can quell Nolan with sex, Nolan instead tapes it, giving him plenty of future control over Tyler.