Do you have any family nearby you can stay with for a few days until things get sorted out? I agree you have to go to the police immediately and speak to their cyber crimes detective and to someone about the stalking because this is really serious. I would try to have at least two girl friends with you at all times and make sure you alert the school and those around you.

When it comes to the other comments on the page from similar accounts egging him on, it almost sounds to me like it could be a mental Illness thing where he has multiple accounts for women he's stalking and he's commenting on all of the pages from every account because he's just not well, kind of like you see people do when they create fake profiles to catfish people and have conversations with themselves. Obviously I have no idea though and it's very possible he has a group of friends who are also stalking women and encouraging this behavior and that is a very scary thought. Either way you safety is all that matters so please let us know what happens and I hope everything turns out ok. I'm so sorry!