hard disagree, yes she knew all about annie but she acted nothing like her. Proposing during one of the most crucial events for the boys’ and wearing an outfit she’s known to despise, should’ve been a dead giveaway.
It could be understandable if the shifter was doing a bad job impersonating Annie, but she literally read her mind and knew everything about her??? It's a miracle Hughie could tell she wasn't the real Annie.