[It's more or less the opposite for him right now. He knows logically that there was nothing he could have done to help her, because he was lucky he'd managed to be coherent enough not to immediately deck Rorschach for touching him, but that doesn't make it easier to hear, that someone you care about went through and was still going through hell and there was nothing you could have done about it.

He carefully repositioned himself to pull her into a hug, careful not to hold her too tightly because the bruises looked painful.]

Shh. It's okay. It wasn't your fault. [And he knows that's not going to be enough for her to stop feeling upset about what happened, but it's still important to hear.] We're going to find out who did this and how to stop it from happening again. If they can ID whatever it was, we can probably come up with some kind of antidote in case we ever run into it again.