I :
-blocked his number (he can no longer send me a text or call)
-blocked his email address (any and all emails he may attempt to send go straight into the cosmos.......I will never know and never see) lol
-have a plan if he calls my work (unfortunately I can not block calls from my work number) If he calls, I will pick up the phone and hang it up, and if that doesn't work, i will pick it up and hit "transfer 8-1234" which will send him straight to campus police/security
-sent a final email (yesterday) and informed him that I had changed the locks (my apartment) and had informed management about "the situation" and that they would be on the lookout for anything peculiar (letting him know that "if" he tries anything stupid, MANY people know about him)