I'm not trying to read into this too much, but why would she go out of her way to make me jealous when she knows she has me wrapped around her finger?
My ex did this after the discard.
The way I see it now, she was trying to provoke me into making the first move, by heightening my emotional state, and by so doing, I would want her to stop her flirting with other guys. And of course, if I go to her, then I'd be in the one down position, and she would be in the one up position, as she can always reject my advance.
So I'd say it is a form of manipulation, to get you to act, and so put her in the control position again.
It's also about testing the waters, testing to see if you're still interested and at the same time enjoying being flirted with by another potential partner.
And finally of course, if you were to re-act there and then, maybe get a bit upset/angry, then she will get a "high" from the drama, and can show to others that you have "issues" and again that puts her in a stronger position.
For her she thinks it's a win-win situation. Trouble is, it is highly disrespectful. Her behaviour was not worthy of taking seriously - my ex is 50 years old, and I think this is the behaviour of a teenager, or maybe even someone younger.