I have modified my votes also. After seeing the film the last time, I did indeed hear Ennis whisper "Oh Jack" as he held the shirts up near his mouth. I also heard a ragged breath which seemed to be saying "I love you." He took that deep breath then released it and he seemed to be sighing "I love you." but its not 100% clear, and not clearly enunciated really.
Now as to TS1, as I understand it, Jack grabs Ennis's hand during their lovemaking, places it on his... erection is the term we're using here? and then at the very end of the scene looks as though he is going to kiss Ennis's hand. We watched that scene in slow motion, a few times, just to make sure.
-Daniel.