Honestly, she expected an argument. She expected the usual blustery bluff about weakness and demons not showing any and even if they did, thats for weaker demons or something about him being too evil or badass for weaknesses or something. She turns over on her side to look at him, slightly stunned.

"...Wow I really thought that I would have to force you into saying that. Or like come at it from the side until I had you trapped with saying something that technically could be friend affirming." She props her head up on her arm and smiles.

Totally unrelated to her smile, a flower crown appears, draping half on and half off his book head. It's definitely falling in one of his eyes.