Here's what's wrong this quote. Being perfect doesn't mean you have to look flawless in the physical aspect. Yes, I'm not perfect. That doesn't make me ugly. Your beautiful heart makes you perfectly imperfect. Not having a flatter stomach, etc.
Quite possibly, this is the cruelest thing that you could do to someone. Particularly when you don't understand it or only know part of the truth (at best), anyway. Let people live; let people learn. (Those are not my words but well said.
So true! Why do people not understand this! People change everyday because they realize things and become more mature! Not because they are becoming something of a monster! Just deal with it and eventually you will see the same things.