"login with facebook"
"Sorry"
email: to notify you when a match is found. an access_token grants us knowledge of only the users email and not his friends'. This cannot be used for viral email harvesting.
friends_about_me: To seperate views based on gender.
user_about_me: to help decide which view is to be "initially " displayed based on the users' gender.
If you really want to filter views, let the user make a explicit decision to filer view based on gender, using a drop-down menu or something.
Still, if that permission is giving you problems because of people's reactions, just showing the entire friend list (with paging, of course) may not be a bad idea.