Yep, as soon as I saw the ice cream scooper I started worrying. Poor Joy!
Joy had not yet been murdered and used as a vessel for Amity, so she was still herself though she was under the statue's spell. When the statue was blown up (along with the house) it seemed to break the spell for everyone. I was a bit surprised at how quickly she reacted though.
I had some issues with this season but overall liked it, especially when it focused on family issues, especially the complicated parent-child feelings and interactions. I thought it was moving and realistic that Nadia, despite her justifiable anger at Pop and having told him that she would never think of him again if they survived, was apparently devastated when she realized that he had sacrificed himself. He may have been a bad man in some ways, but they had a loving father-daughter relationship before the revelation that he was the one who killed her mother (which to me seemed like a shooting based on misunderstanding her intentions, as can happen in military actions, rather than murder in cold blood--though obviously to Nadia and Abdi the reason wouldn't matter).
I also liked the interaction between Annie and Joy (or lack of interaction on Joy's part) between their reunion in Castle Rock and Annie killing her. It made sense that Joy would pull away from her after the initial reunion, because most of what happened to Joy was Annie's fault in one way or another. Annie may have loved her, but she tried to kill Joy's real mother; kidnapped Joy and forced the child to live an abnormal life on the run, including dealing with a severely mentally ill mother; and brought her to Castle Rock, which began the chain of events that led to Joy's ordeal with the devil worshippers, not to mention the events that led to Joy's real mother being killed because Joy was trying to keep her from killing Annie. On top of that, Joy was growing up and, even absent the craziness at Castle Rock and Annie's craziness, would have started to become moody and wanting to be independent--as the woman who hired Annie to be a caretaker for the elderly patient said, "Hormones!" As someone who in adolescence sulked and pulled away from my mother (who also had mental health issues but not as severe as Annie) and who then was on the other side of adolescent attitude when my daughter got to that age, I immediately felt that Joy's behavior was in part due to the adolescent need to pull away. Maybe if Annie had not been so paranoid and had been able to understand this natural developmental phase, as well as the other reasons why Joy would resent or avoid her, they could have gotten through it and eventually had a better relationship (with psychiatric treatment for Annie and a lot of therapy for both of them, and assuming that Joy could forgive Annie's crimes--a big assumption).
As I'm writing this, another parent-child parallel occurred to me. Both Joy and Nadia were raised by a parent that killed (or, in the case of Rita, almost killed) the real mother, and in both cases the guilty parent tried to make up for their actions by being the best parent they could be--in Annie's case, making Joy her whole world and reason for living, and being ultraprotective; in Pop's case, giving Nadia love and the best education possible. (I assume he also tried to be a good father to Abdi, but Abdi apparently never trusted him even before he found out the truth of what happened in Somalia.) Both Joy and Nadia returned the parent's devotion until events and revelations tested them, and then both intended to abandon the parent. But as shown by Joy's letter about seeking emancipation and Nadia's grieving reaction to Pop's death, the parent-child bond is not so easily severed even when the parent is toxic.