People change and promises are broken.

There is so many things in life that can make you sad. Too many. I can right now count to five things that makes me sad right now. But that's the thing I think. That you have all these sad stuff, but as long as you don't let them win. You have so many thins to be happy for. And if you feel that you don't, then you just have to think that it will not be like this forever. New people will come in your life, you will visit new places, try new things and when those things happen, you will not remember the saturday night when you cried yourself to sleep.