Reason

You were the one who started it and you are the one who ended it.
I was the reason why you started it and I am the reason why you ended it.
We both know it

But, what u don't know and I know is this
You were the reason behind me being the reason for you starting it and you were the reason behind me being the reason for you ending it.
So, Don't blame me for it. You were the ultimate reason for it.

Reason