Oh, he knows that tone and he totally lives for it. The scrutiny of her (supposed) gaze and that tone of her voice that says nothing but disgust for the situation... yes the perfect reaction that anyone should have. It breathes life into him, it really does.

"Oh, Rosie, so glad you have such confidence in me!"

If anything, her reaction gives him more energy as he charges toward his vixen-like foe. Of course, doing nothing short of proclaiming sweet nothings to her... while taking her down. Even a 'don't be jealous of the other lady, now' can be heard. Just to rile her up. Yep.