Board Thread:Spoilers!/@comment-26159109-20151007195419/@comment-6175354-20151116150645

Eskaver wrote: It's not that, but the complete 180. He went from little hostility to a whole lot of hostility in two seconds. He has reason to be mad, but it was far to abrupt. Not really.... Hook was hostile towards Emma most of the time, since everyone returned to Storybrooke.

Emma is the villain here, because she took away someone else's choice. She is incredibly selfish, and will not stop until she finds another vessel. Emma justifies her decision by claiming to be saving Hook, when all she did was turn him into a monster. Be thankful, that everyone (especially Hook) is finally blaming her.