Fortescue briefly considers informing him that her Blood magic only causes internal harm, to her soul (were it in its rightful place), and not external, but decides not to. Let him stew it over, or forget it entirely; she doesn't care which it is. But that temper's going to be fun, if it doesn't get him killed by someone else.

"You don't harm me, I don't harm you. Simple."

That's not the full extent of it — if he went on a rampage, she'd defend the others here — but that's what her personal philosophy boils down to. She's not under orders here. She's her own woman, for the first time in a while, and she intends to enjoy it as much as she can.