FERPA and confidentiality of information when university officials contact school
Some of the information you mention might be considered public information and not "educational" and so not covered by the law. Your courses, and similar are probably covered, but FERPA is more intended to cover your performance. But if you are concerned for your safety, for example, you need legal counsel. The university may be able to provide it via some office dedicated to student services. But for a serious concern you may need to contact a lawyer or even the police. In some situations, a university can bar a person from school facilities, of course. 

It may be a crime for someone to use the university systems to harass or stalk you, but if they are willing to risk it, you would be at risk, so you need to take precautions. But for serious interventions, you probably need some evidence or corroboration by others. Some people are just awkward rather than creepy, but only you can really judge that.