Perhaps she was too nervous and at the same time remembering her tragic past, where she suffered greatly at the hands of the devourers, but she hadn't even realized that she had told Matt all this.
Still, he didn't know what to say at a time like this.
Words of comfort or anything similar, did they really work? Back then, when his family and Charlotte's family died at the hands of the monsters, neither of them said words of comfort to each other. They were devastated and had been left with slight trauma.
Still, words of comfort did not come out of their mouths then; wasn't that normal?
What kind of words could comfort such a wounded person? Would the words bring their family members back to life? Would they heal their trauma? A simple answer to those questions is that they would not heal that wound, but perhaps they would make that person feel like they have support nearby.