I didn’t become heartless

I didn’t become heartless, I just became smarter. My happiness will not 
depend on someone else. Not anymore.

The only keeper of your happiness is you. Stop giving people power to control your smile, your worth and your attitude. 
– Mandy Hale.

Happiness will never come to those who fail to appreciate what they already have.

You are responsible for your own happiness. If you expect others to make you happy, you will always be disappointed.