I mean, she wasn't into you and you weren't into her. That's fine. Don't take it personally. As to the idiot?
There's a nice guy in my class. He hangs out with me a lot. They kicked him off his machine today so I could get some stuff done. I didn't ask. I had four hours of work on that machine. I'll be done tomorrow morning. He had four hours of work on that machine. He's been on it since mid-October. He told me during break that he wasn't sure if they'd let him fail three times in a row.
And he's a nice guy. And he's a total fuckup. But I have no doubts that if I were sharing a space with him and toxic chemicals that my ability to be polite would be strained.