Well, I talked to her... The ex is not in the picture anymore. She is single. She does not date people from the same institution, so it is not going to happen. She tried it once, but it did not go well. I quite possibly have the worst wingman ever. Back when she asked about my dating life, apparently my coworker was trying to get information about her. It came off of as creepy, so she changed the topic to my dating life. It still does not explain why she gets nervous when she sees me on campus. It still does not explain why she wants input on where I work, if I do leave. I don't get why she eats off of my plate or any of that. I do now have the phone number though. But, yeah....pretty humiliating.