Hey y'all! What an interesting thread. I found it today and this actually prompted me to unwrap the DVD that I had bought the day it was realeased. (I know, don't ask, but I hadn't been able to watch it all this time.)
Anyway, I put it on my 32" LCD TV with the sound run through Bose speakers, cranked up. I'm a musician and am considered to have pretty good hearing. Here's what *I* experienced of the scenes in question with repeated rewinds. I have the widescreen version if that matters.
First, btw, the first time tent scene was very dark - I could hardly SEE anything! Aren't all DVDs the same? How are people managing to brighten the picture? I could see clothes grabbing and grappling, but I never saw Ennis's hand on top of Jack's hand or anywhere else for that matter. Lots of grunts and noises. There was a breathy exhalation that could have been a whispered "fuck", but definitely not 'fuck me'. At least , I did not hear it.
The second time in tent: Jack said (whispered very softly) "I'm sorry" 2 times followed by 1 "s'all right' at which point he nodded. I could not hear any 'lie back' or 'come on' or anything else. Btw, I just love the music throughout this scene.
Ennis with the 2 shirts in closet: Never heard an 'oh, Jack', but, there was barely whispered, more like a breathy exhalation of what sounded like 'I love you' right before scene cuts. It fit the lip movements, too. So it's not like he said it out loud even though he was alone, but more like he was thinking it and it came out as a sigh.
Anyway, that's my interpretation, and I'm stickin' to it.
With Ennis' mumbling, there were a lot of spots that were really difficult to catch all the words spoken. Easy to miss stuff w/o paying diligent attention, fer sure.
Thanx for letting me join in!