I love this episode. Its so realistic, and its emotionally draining while watching them fight and break up. And that provides some seriousness, while the other four in the bedroom provide comic relief, so you don't go crazy.
Although I have never been in a breakup anywhere close to what R&R had, its like, wow. You really can feel all the emotion, because we had spent nearly 3 seasons wanting them together, watching them together, and you can't just imagine that they aren't perfect for each other. It seems so strange that such a relationship which WAS Friends really was such a short time. It also makes you realize that just because you think they are great together, really, they may not be.
Oh, and the Waxine subplot with Monica and Phoebe. I have always wanted to try stuff like that. I hate shaving.... and it looks so painless... at least now I know that it isn't as painless as it seems to be hehe.