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.
To make the righ choices in life, you have to get in touch with your soul. To do to this, you need to experience solitude, which most people are afreai of, because in the silence you here the truth and know the solutions - Deepak Chopra
"You have to decide what your highest priorities are and have the courage - pleasantly, smilingly, nonapologetically - to say 'no' to other things. And the way to do that is by having a bigger 'yes' burning inside" - Stephen Covey