[spoiler] Amabel Swanson. I feel bad.

[Sexbad]

How about, maybe she was just like Doctor Eminiss? He spoke and probably looked human, but he transformed very quickly. Possibly during chats Amabel was still human, but then shit hit the fan in between you chatting with her and her bludgeoning you with the biggest hug of your life. Perhaps her connection to the hive was rather small at the time, because few greys were near and apparently you need buddies to help you out with your telepathic connection.