Often confusing

One way staircase.

There once was a house,
With a one way staircase,
An occupant with half a face,
A sad, sad fate.
A single room in which he stayed,
Another, reserved for a she, one day,
Yet the one way staircase still remained,
A lonely sages claim.

And then came along a carpenter,
Burly arms, sweet charms,
And an offer, to stay,
To make way, in that staircase,
For more, for less than pay.
But yet refused the lonely sage,
This offer, this mans grace.
For to him it was to remain,
This one way staircase.

A curious fate,
One might say,
To turn down the light,
And sit in decay,
Yet he sat and prayed,
For a she one day,
A hopeless dream,
An endless nightmare.

And then he left,
For where knows not,
The curious neighbours,
Nor the striped alley cats.
What only remained,
Was a pair of footsteps up that way,
That staircase with one way,
A crumbling ruin, a crumbling grey.