Why did one of my friends dissapear on facebook???!!?

[Hi bye ...]

Today i opened my facebook and i was seeing my friend list then i realized that one of my friends dissapeared i looked three times and i didnt find that person.i searched in my sisters friends and i didnt find also i searched in the persons brothers and sisters friends and i didnt find.Would that person have blocked me or deleted the account?or is facebook retarded?thanx
Thanks for all your answers:-)but i dont think the person will block me because we hardley even talk to each other and we are relatives but not close :-) so i thinl its deactivated btw thanx again :-p

[Brittany]

It could very well be that you were blocked, I don't forsee Facebook just doing that.

[Correy]

The likelihood of that person deleting his/her account is very high, so I would assume that he/she did in fact delete his/her account.

[Washim]

Most probably he has blocked u. There may be other reasons like Deactivation or Permanent Deletion of his fb a/c, but these r rare.

[Rock Star]

Yes you wrte blocked or deleted...they dont just disapper or maybe that person deleted their facebook