So, she knew that Robert was going to be asked on a date by Blonde Blazer the whole time?
And she still felt entitled to her own movie date, that she isn't willing to ask for.
All because she's a thief who refuses to buy her way in, and feels bad that other people have to pay?
So she emotionally blackmails you to come, just so she can eat popcorn?

Am I missing something here?