The second he's in her space, she's rising up on her tiptoes, leaning right back into his. They're almost nose to nose at this point, her eyes locked on his. "You sound angry." She points out her perception of his tone and what he's saying, and rises up on her tiptoes just a bit more so her forehead bumps into his. It's meant to be more playful than hostile, because the fact that they even need to discuss this is ridiculous to her.

"Also, not jumping down your throat. Not my fault you can't handle a poke or two."