Shakespeare's Sonnets: That you were once unkind be-friends me now

That you were once unkind be-friends me now,And for that sorrow which I then did feelNeeds must I under my transgression bow,Unless my nerves were brass or hammered steel.For if you were by my unkindness shakenAs I by yours, y'have past a hell of time,And I a tyrant have no leisure takenTo weigh how once I suffered in your crime.O that our night of woe might have rememb'redMy deepest sense how hard true sorrow hits,And soon to you as you to me then tend'redThe humble salve which wounded bosoms fits! But that your trespass now becomes a fee: Mine ransoms yours, and yours must ransom me.