Tifa's handling of Cloud has changed in Advent Children... and as for the way it was in VII, it was simply because she knew how confused he was and how easily he could break.

Not arguing your opinion of course, merely pointing that out.

As for Aerith's handling, a very good point. But still, I wonder if that would work out for the long term. She seems to be too eager to ignore the problems as opposed to solving them. Sure, telling someone to get over it and that things will work out is a good thing sometimes, but does she have the capability to actually work through the problems when they can no longer be ignored? I wonder.