Shakespeare Reference in The Holland Suggestions

John Dunning's novel The Holland Suggestions contains a Shakespeare reference. Dunning writes: "I felt a stupid flush of teenage jealousy that was annoying and at the same time intriguing. No woman had roused that green-eyed monster in me in more than fifteen years" (p. 109). That's a reference to Iago's speech from Act III Scene iii of Othello, "O, beware, my lord, of jealousy!/It is the green-eyed monster which doth mock/The meat it feeds on."

The Holland Suggestions was originally published in 1975. The copy I read was the Pocket Books edition from 1997, which includes a new introduction by the author.