A convergence, perhaps the result of the mating of two songs, "I'll Be All Smiles," and "Farewell He" (Fare Thee Well, Cold Winter), in this verse from the Watersons' version of the latter:

I'll be all smiles tonight, boys,
I'll be all smiles tonight.
If my heart should break tomorrow
I'll be all smiles tonight.

I have posted the Watersons' song in thread 3476, Farewell He/She: Farewell He

Notes by A. L. Lloyd state that the song in various forms was once spread all over England. This version was from "a 90 year old singer, George 'Tom' Newman, who lived near Bampton."