Throuple

 Prince: Will you have me lady?
Beatrice: No, my lord, unless I might have another for working days. 
Your Grace is too costly to wear every day.

(Shakespeare Much Ado About Nothing II.i.319-323)

And they lived happily ever after- 

But is "they" always two?

Can three live as well as two

Or does jealousy seep through

A crack created when she smiles

In a different way

Than she smiles at you?

Or you share a kind of connection

That has his eyes blaze

With uncertainty.