Final answer:
The painful and emotional nature of her release made the Giver look away during Rosemary's release.
Step-by-step explanation:
Regarding Rosemary's release, the Giver tells Jonas "I didn’t watch. I looked away." Specifically about her release, the painful and emotional nature of her release made him "look away." This is because the act of releasing, which is later revealed to be euthanasia, is a deeply distressing and troubling event, especially when it involves someone the Giver cared about. The Giver's choice to avert his gaze during Rosemary's release shows his emotional turmoil and inability to watch someone he cared for being euthanized. It's an acknowledgment of the inner conflict and pain that the Giver experiences, despite the community's neutral or positive portrayal of release.