Delayed Check Mark in UITableView

Hello there! It's getting harder to ask questions as the code is getting more complicated but I'll try. So, I just finished the section that taught us how to select an image and then add recipients. For some reason, on the screen where I can select my recipients, it will only show a checkmark on their name once I've clicked on them and then somewhere else. So I click on name one, and all that happens is that name is highlighted. But then when I click on the second name on the table, the first name is now checked! It's a little bizarre.

I assumed the problem was the code in the didSelectRowAtIndexPath method but I downloaded the practice files and the code is exactly the same. :?

anyway, here's the code:

- (void)tableView:(UITableView *)tableView     didDeselectRowAtIndexPath:(NSIndexPath *)indexPath
{
    [self.tableView deselectRowAtIndexPath:indexPath   animated:NO];
         UITableViewCell *cell = [self.tableView   cellForRowAtIndexPath:indexPath];
    PFUser *user = [self.friends objectAtIndex:indexPath.row];

    if (cell.accessoryType == UITableViewCellAccessoryNone) 
          cell.accessoryType = UITableViewCellAccessoryCheckmark;
        [self.recipients addObject:user.objectId];
    }
    else {
        cell.accessoryType = UITableViewCellAccessoryNone;
        [self.recipients removeObject:user.objectId];
  }
       NSLog(@"%@", self.recipients);
}