I know you tend towards the paranoid, but I assure you, I've no desire to trick you into letting me cast any sort of ill-intentioned spell on you. You're just about the only person here as pragmatic as I am, and a far more useful ally alive and well than dead with a blade in your skull. And besides, your company isn't dreadful, I suppose.

[An awkward sort of attempt at a joke.

At this point, she can't recall what she's told him of her abilities that he'd remember, so she opts to explain it all again.]

I'm a healer. I can heal injuries, cure most any mundane disease, remove most curses, neutralise poisons, and provide protection in battle. I tried casting spells that would do all those things.