Hypothesis: If a guy stands you up and then refuses to talk to you, he is not interested.
Control: I ended all communication.
Independent: A random message from him at 4:30 on a Tuesday.
Results: Once I was stood up and felt that fun emotion, I got on with my life and stopped thinking about this person. It seems, however, that he did not do the same thing. At some point in his day, he found it necessary to contact me once more and try to reestablish communication. Not only did he reach out, but he also asked me (the girl he stood up) why his dating life was not successful and why some girl decided not to date him. I was not receptive to this communication.
Conclusion: This guy has no idea how to treat human beings; let alone female human beings.