I think that this episode was a play on the Seinfeld episode "The pool guy" (Season 7). The pool guy in Jerry's Gym was also named Ramon who wanted Jerry's friendship, but here the theme was - what happens when you don't need another friend as a grown up. Louie has a twist, and all though Ramon takes the first step, Louie wants more.
I was going to write a longer review, but Tim Surette's review (click on TV.com review) said everything I was thinking in a much more concise way.
"Louie" is like a novel comprised of inter-connected short stories. Each may be tonally, and formally different, but still add to the larger picture. An individual story, like this episode, can be focused on a specific place and time and still make funny (and, yes, touching) statements about larger themes... AND advance the overall "narrative" of Louie.
The first scene walking down to the beach killed me. I love when he creates a slightly exaggerated version of his worldview, especially in relation to glamorous, younger people. The last time I thought he did so brilliantly was in season 1's silent club scene.
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