"It's still someone inside my head."

Which is something she really doesn't want happening again. It's of little comfort to hear that it can be blocked. It had taken her a long time to be able to fight off the mind control previously and while this wasn't exactly that, it was still...uncomfortable.

"To warn each other? There's shit here that needs to be warned about? Telling me these people don't have our best interests in mind?"

That's sarcasm.