Proof of Understanding - A Poem

Proof of Understanding

A stark bathtub of glass, tireless pain.
Distorting you, swaying me.
Water droplets running down the faucet.

Because the moonbeam has slipped
Onto your collarbone,
I'm realizing that solitude is not loneliness.

Because I was fascinated by your fragility,
I'm realizing that two people together is not certainty.

Still, I want a proof of understanding,
I'm making sure your words look like a phantom,
Or traces of you.

The water droplets irregular sound
Became monotonous; you look etiolated.

If this is the proof of understanding,
We would be eternity.