Quotes for being stood up?

A girl had asked me out to her sorority banquet, of course I said yes. She had been saying how excited she was to go with me, but a few days before, she told me via text that she was bringing someone else, after I bombed hundreds of dollars on an outfit for it. She has been ignoring all texts I send her and haven't talked to her since. I want some sayings/quotes, original or famous, whichever, that describes this situation. Immature/Stoodup/*****, etc. Thanks.