public function unfriend()
{
$profileID = getIdFromURL();
$user = UserRepository::getUserByID($profileID);
checkRequestURL($profileID, $user);
$myID = UserRepository::getIdByUsername($_SESSION['username']);
FriendRepository::unfriend($myID, $profileID);
redirect(Route::get("userProfile")->generate(array("id" => $profileID)));
}