Facebook question?? Please Help?

[OSITO]

Someone keeps spying on me on whatever I put on facebook & that person even admitted it to me. I tried blocking that person's facebook, but then that person went to his/her privacy settings & found out that I had blocked him/her when he/she clicked on the privacy settings & clicked on the blocking section & saw that I had blocked him on the "block users" section. So then that person unblocked me & continues spying on me as he keeps saying that 2 me & also told me all those stpes on what he he did to unblock me. So I know his e-mail thingy that people use to get on facebook with before the password & I typed it into my facebook page on the block users section but he/she says that they can still view my page. So my question is, how do I block someone without having the option to unblock that person & if I block that person, will the person be able to see that I have blocked him? Because he/she found out by going to his privacy settings. So is there a way & how & how do I make it possible so that that person wont find out that I have blocked him/her for good?

[Spyro1]

Do you know the person? Tell him/her to leave you alone and report that person.

[MB]

Block them and they won't be able to see your profile. There's nothing they can do about that. If see them again can tell them that or that you are taking a break from fb right now and deactivated your account temporarily

[12LaraJane]

Tell the police.