They can't, not really, but notice how he failed to tell her it wasn't necessary. Whether he's letting her carry on with such unnecessary things because it'll appears her or cater to some budding, begrudging acceptance of her presence is up in the air. But he's sucking in a sharp breath through clenched teeth when the antiseptic touches his wound and stings, just as she warned him it would.

He'll deny making the sound should she ever bring it up.

Curious, he turns his head watch her as she applies bandages to the wounds on his back. She went from hotheaded and brash to gentle and caring at the drop of a hat.

Fascinating. (So fascinating, that he forgets he's staring.)