Surprise!

I'm so surprised there are more like me. Three of them. They all failed school at least once, they all suffering, lost along the way, just like me. I wonder why can't I cry. I Know I'm blocked but can't understand what was that made me that way.
What I do know:
When my grandfather died I didn't shed a tear.
When my mother left home I wasn't shocked like everyone else.
When my bestfriend left the country I felt bad and missed him but just that.
When my first girlfriendf dumped me I didn't cry.
I remember that.