"It's not in me anymore, it's not. It's gone." And maybe if Emma said it enough she'd begin to believe it. She wouldn't wake up and curl in on herself because she could hear Nimue whispering in her head, she wouldn't keep feeling that icy cold tendril of darkness clenching around her heart. She knew, realistically, that it was gone. In the sense of the curse being out of her, it was gone. But her mind hadn't healed from the trauma yet, and Emma was so good at burying what she didn't want to deal with.
To Emma, in that moment, it didn't really matter at all. She'd turned Killian into something he hated more than anything else, she'd stood by and let him sink into a darkness he'd fought upwards from for so long. She did that to him, and she deserved to be hurt for that. It didn't make it easier to deal with or right, not at all, but she found it hard to actually get herself moving in the morning.
"I'm not the savoir here. You're not a Champion here. We're just stuck, like everyone else, in a place we don't belong." And if Emma couldn't save anyone, why was she still trying? "It's time to just accept it. So, I've accepted it. We're going to stay here until it lets us go, and then we'll go home. There's no point in fighting."