Untitled (any sugestions?)

If there's one thing life has tough me,
It's that you don't know what tomorrow will bring,
There's so many things you want to happen,
But it could bring you anything,

Today has been a bad day for me,
I lost the one person I truly love,
She's all I ever wanted and more,
She was my angel sent from above,

I don't understand what happened,
I don't get where we went wrong,
One minute we were happy,
And the next minute you were gone,

Please help me understand this,
Just why we couldn't be,
Please tell me when it was,
That you lost interest in me