Poem by Louis MacNiece...What is it called?

Is this the one you're looking for? It's lovely.

Les Sylphides

by Louis MacNiece

Life in a day: he took his girl to the ballet;

Being shortsighted himself could hardly see it--

The white skirts in the grey

Glade and the swell of the music

Lifting the white sails.

Calyx upon calyx, canterbury bells in the breeze

The flowers on the left mirror to the flowers on the right

And the naked arms above

The powdered faces moving

Like seaweed in a pool.

Now, he thought, we are floating--ageless, oarless-

Now there is no separation, from now on

You will be wearing white

Satin and a red sash

Under the waltzing trees.

But the music stopped, the dancers took their curtain,

The river had come to a lock--a shuffle of programmes--

And we cannot continue down

Stream unless we are ready

To enter the lock and drop.

So they were married--to be the more together--

And found they were never again so much together,

Divided by the morning tea,

By the evening paper,

By children and tradesmen's bills.

Waking at times in the night she found assurance

In his regular breathing but wondered whether

It was really worth it and where

The river had flowed away

And where were the white flowers.

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I think the title is "Les Sylphides". I haven't been able to track it down, but the concluding lines are: “So they were married-to be the more together- And found they were never again so much together, Divided by the morning tea, By the evening paper, By children and tradesmen's bills”. I hope this may help you find it.

Visiting the ballet, by Macniece....