Shakespeare's Sonnet 89

Say that thou didst forsake me for some fault,And I will comment upon that offence:Speak of my lameness, and I straight will halt,Against thy reasons making no defence.Thou canst not love disgrace me half so ill,To set a form upon desired change,As I’ll myself disgrace; knowing thy will,I will acquaintance strangle, and look strange;Be absent from thy walks; and in my tongueThy sweet beloved name no more shall dwell,Lest I, too much profane, should do it wrong,And haply of our old acquaintance tell.For thee, against my self I’ll vow debate,For I must ne’er love him whom thou dost hate.

Say you left me because of some fault, and I will expand on that offense. Speak of my limp, and I will immediately start limping, offering no defense against your reasons. Love, you cannot disgrace me half as badly, to justify the change you want, as I will disgrace myself. Knowing your wishes, I will kill off our friendship and act like a stranger. I will stay away from the places you walk, and your sweet, beloved name will no longer pass my lips, in case I, too unworthy to speak it, should dishonor it and perhaps mention our former friendship. For your sake I will vow to fight against myself, since I must never love someone you hate.