Does Chloe Forgets Clark's Secret?

They successfully removed Brainiac and cured Chloe, in the process, restoring her memory of Clark's secret. Chloe had no recollection of the time in which she forgot his secret and Clark did not tell her of his decision.

Does Chloe get her memory back about Clark?

She was fully-recovered with most of her prior memories, including knowledge of Clark's secret, intact. However, Chloe had indicated that she does not clearly remember the time period leading up to the wedding.

Is Chloe Sullivan Felicity Smoak?

Felicity Smoak & Chloe Sullivan: Why they are basically the same character. Chloe Sullivan, originally, was set up in the show as a Lois Lane stand-in. Since she is a completely original character for the show, it was easy to tweak her story enough to the point where Lois became her cousin.