I need examples in hamlet of situations and dialouge that emphasize the theme 'that love wanes with time' and instances when the oppositeof this theme is expressed? I didn't understand this at all.

I am a Theater major/Shakespearian studies minor. I have read Hamlet Backwards and Forwards three semesters in a row, and I have not seen even the slightest hint of anything resembling a love-story plot. I am completely baffled by this question. Whoever came up with it clearly wants you to suffer.