Aydin’s Abstrusity

I did this because you did that.
Now we are here because you are there.
I am this because you are that.

I chose to ‘A’ because you chose ‘B’.
To be or not to be” is where we are at.
We are thus, for what we chose.

If this is because of that;
And ‘A’ is clearly not ‘B’,
Are we to be, or is that that?