"Because"

I miss him,
But I can't tell him that.
I search for him,
But I can't call him back.
I'm waiting here,
But I don't know what for.
I'm heartbroken
But he's hurting so much more.
I'm tired of this feeling,
But it's all that I have left.
I'm filled with all these memories,
But I only want us to forget.
I cry a little still,
But it's all that I can do.
I'm carrying all this guilt,
Because that's all I have left of you.