If it's the lack of forbidden you're worried about. You could still forbid me to do things." "What kind of things?" She felt him smile against her mouth. "Things like this.
Jace hated it when other people were worried on his behalf. It made him feel like maybe there really was something to worry about.
Because that was what you did with family when you'd been worried about them, you grabbed them and held on to them and told them how much they'd pissed you off, and it was okay, because no matter how angry you got, they still belonged to you.
When the fey were worried, it was time to panic.