Seeking the poem that describes a man's return to his wife, who suffered a disfiguring sickness?

There is a poem in English that describes a man's (the poet, I believe) return to his wife who had experienced illness. In it he reassures his wife that he continues to love and cherish her. I think it has been set to music, too. I heard this, probably on NPR, about 15 years ago. Anyone know the poet and poem? Thanks.