"Those Reflections began to prey upon my Comforts, and lessen the Sweets of my other Enjoyments: They might be said to have gnaw'd a Hole in my Heart before; but now they made a Hole quite thro' it; now they eat into all my pleasant things; made bitter every Sweet, and mix'd my Sighs with every Smile."
— Defoe, Daniel (1660?-1731)
(p. 325, pp. 309-10 in Penguin)
See The Fortunate Mistress: Or, A History of the Life and Vast Variety of Fortunes of Mademoiselle de Beleau, afterwards call'd the Countess de Wintselsheim, in Germany. Being the Person known by the Name of the Lady Roxana, in the Time of King Charles II (London: Printed for T. Warner, 1724). <Link to ESTC><Link to Google Books>
Reading Daniel Defoe, Roxana, ed. David Blewett (New York: Penguin Books, 1987).