She could lie- even if she's not terribly skilled in it. Deflections, evasions, redirection the conversation- yes. But this isn't easy to hide, especially when the bulk of that tension drops away as soon as his hands are off of her.

And it's Tony.

She knows him. She trusts him. He has never hurt her intentionally (accidents in the lab don't count), and she's still-

Teeth grit and an abundance of anger turned inward- not entirely unlike how she would snap at herself for being so foolish to miss something she thought ought to be obvious to her or for failing, she grinds out: "Trauma. I survived the Spire. I did not leave unscathed."