Hah - yeah it sure was! You're probably right.
Two things though:
* Had Jabba done this to her before? I mean, she'd probably been there a bit, and in that outfit...I'd assume he had. Why freak out this time?
* Did she really insult him so much? It sounded like she was a bit more plaintive or begging to me - like maybe she insulted him accidentally, and thought by batting her eyes a bit and twirling her hair (err...worms) she could get away with it, to which Jabba said "You aren't as pretty as you think" with one swift button press.