Jennifer Aniston was so upset during "jarring" Friends: The Reunion she had to walk out several times

The Hollywood Reporter

"I think we were just so naive walking into it, thinking, 'How fun is this going to be? They’re putting the sets back together, exactly as they were.'"  Aniston tells The Hollywood Reporter. "Then you get there and it’s like, 'Oh right, I hadn’t thought about what was going on the last time I was actually here.' And it just took me by surprise because it was like, 'Hi, past, remember me? Remember how that sucked? You thought everything was in front of you and life was going to be just gorgeous and then you went through maybe the hardest time in your life?' It was all very jarring and, of course, you’ve got cameras everywhere and I’m already a little emotionally accessible, I guess you could say, so I had to walk out at certain points. I don’t know how they cut around it."