Yes, when Grissom returned.. He was ready to just grab her, pin her to a wall, and have 10 minute make out session... When all she could thing about was how she likely smelt like fish, and garbage. (Okay - I said fish, because my garbage can smelled like fish today.. Ya ) Personally, I won't be hurt we never see that letter again. I think it was not only more so for Grissom to realize how much he loves Sara, but for the fans (us) to get a greater understanding of how he does feel for her. The cocoon - that's a different story.