Why?

I've known you as someone...
Who never give up on me.
Who always share everything to me.
Who always be there with me thru ups and downs.
Who always promised to stay.
Who wanted to take care of me until I met someone who can really take care of me.

But now,
You said that
You're now tired.
You don't even care, you don't even mind what I said and what I think.
And at last,
I know you're tired.
And I promised to let you rest.

If you blame me for what I did,
Why not you just give up earlier?
Why now?
Why?
I just wonder, why now?
That's all.