I have wasted myself out of my means. The jewels you have had from me to deliver to Desdemona would half have corrupted a votarist: you have told me she hath received them and returned me expectations and comforts of sudden respect and acquaintance, but I find none.
– William Shakespeare
Othello, Act 4, Scene 2. The penny finally drops for Roderigo. He is upset with Iago because he wasted all his money and sent enough jewels to Desdemona via Iago to corrupt a nun. But Iago’s promise that Desdemona would return some sign of affection never materialized. The scales have fallen from Roderigo’s eyes and he realizes that Iago has manipulated and tricked him.