Why did it end?

You were my best friend
Why did it end
U cared for me
When I was down on my knees
Crying of my hateful life
And when I pulled out a knife
U told me that u cared
And that u was scared
And u said if I ever died
u looked in my eyes
And started to cry
But one night
We got in a fight
And u ran
And there was a van
That did not see you
It could not be true
U died
And left me behind
If it was not for that fight
U would be here tonight
I would not have tears in my eyes
While in a painful life of lies