Weird new friend leads to eventual "break up"

At my freshman orientation I met a guy I'll call Jon. We made small talk standing next to each other on a tour of the campus. When we left to go home he asked me for my email, and I gave it to him. We started talking and made polite conversation over several emails, both of us wanting to know someone on campus when the semester started.

Eventually I gave him my number. The first day on campus he texted me and said he was having trouble with his computer and I went over to his dorm to help him.

After that, he sent me 5 messages a day and was always asking me to go to the dining hall and eat lunch with him. I went a few times with him, but he was very clingy and I got a weird vibe from him, like he was interested in me romantically (which I definitely did not want). I then, over several conversations, subtly implied that I did not believe in f*cking up my college career with love and was not interested in a relationship until I reached my late 20's. After that he sent me weird chain texts that were along the lines of "send this to ten other people and you will meet the love of your life this month". After 30 of those I decided to "break up" with him. I had no interest in him whatsoever and there was no way I would ever go out with this guy, even if I was on the market.

I tried to slowly wean him from my text messages and was down to 1-2 a day and then all of the sudden he asked me if I was avoiding him. I wasn't about to say HELL YEAH, so I told him I had been really busy and needed to focus on my school work. After that conversation he still texted me and asked me to eat breakfast with him or go to his dorm. Eventually I had to have the "I'm too busy to have friends, you should be friends with someone who has the time" talk. After I told him that 10 times politely in so many ways he texted me and said "why don't you want to be my friend". At this point, I was just brutally honest and told him the truth; that it had become too awkward to be around him and he was acting weird, not to mention we didn't have anything in common other than the fact that we were freshman. So then he texted me and said, I quote "I thought you were such a sweetheart" wtf? So I was freaked out and ended things with him completely and he stopped texting eventually.

Then, about a month ago I joined facebook and guess who asked to be my friend. I accepted his request, not realizing it was him (no profile picture, and Jon never told me his last name). Now I'm afraid to say where I am or what classes I have because I don't want him to try to find me. He has a class before me and always shows up early and he sees me leave. It's WAY awkward. I try to avoid him and I would feel bad if I unfriended him on facebook because then if would be really obvious that I was avoiding him.

Whew! So... any advice people? Did I do the right thing? Did I lead him on? Is he a stalker? What should I do? Is this normal?