... by Matthew Prior. Here is a link to the text.

The following quote is from Volume V of "A History of English Poetry" by W. J. Courthope. It is purported to be a negative critique by Johnson of the poem.

The greatest of all his amorous essays is “Henry and Emma”, a dull and tedious dialogue which excites neither esteem for the man nor tenderness for the woman. The example of Emma, who resolves to follow an outlawed murderer wherever fear and guilt shall drive him, deserves no imitation; and the experiment by which Henry tries the lady’s constancy is such as must end either in infamy to her, or in disappointment to himself.