Cecilia by F. Marion Crawford

Cecilia told her mother what Lamberti had advised her to do for Guido's sake, and that she had sent her message by him. The Countess was surprised and did not quite like the plan.

"Either you love him, or you do not, my dear," she said. "You were sure that you did not, and you told him so. That was sensible, at least, though I think you might have found out earlier what you felt. It is much better to let him understand at once that you will not marry him. Men would always rather know the truth at once and get over it than be kept dangling at a capricious woman's beck and call."