She isn't the only one frowning at that point. He wants to call her out on eating something that apparently has no flavor, but instead just sighs, running a hand over his forehead as he thinks of all the possible outcomes. Then decides to both show his hand. If he could sense her power, it was natural to think she could do the same, and since neither of them had been hostile to each other, it was logical to think that she'd understand his next words clearly.

"Very well. I will have my Persona on standby."