The pleasures of love proceed successively from a distich to a quatrain, from a quatrain to a sonnet, from a sonnet to a ballad, from a ballad to an ode, from an ode to a cantata, and from a cantata to a dithyramb. A husband who begins with the dithyramb is a fool.
Though your vulgarian does not readily admit that feelings can change overnight, certainly two lovers often part far more abruptly than they came together.