Yes, happiness is being "closer, and closer, and closer, like we used to be"

Happiness is Joan Bennett singing Sentimental Moments in 1955's We're No Angels

Here.

The song was composed by Friedrich Hollaender and Ralph Freed and introduced to the public through the film. Hollaender is the legendary composer of "Falling in Love Again (Can't Help It)" from The Blue Angel, 1930.