She has been drunk on every show.
First show, when she wasn't performing, they did a cut-away "reaction shot" of the other contestants, and Nancy was in the frame. She looked totally pissed.
For her actual performance, given the circumstances it was difficult to tell if she was pissed or just flustered and embarrassed by what a disaster it was. Given my instincts from the night before, I went with pissed.
Haven't seen her tonight, but I'm willing to bet if other people are picking up on it, she's the same way again.
I feel sort of bad for her...