Ramon shows Louie a more authentic Miami and Louie shows Ramon a more authentic version of himself. He talks about his Mexican heritage, speaks Spanish and laughs ... He's actually having fun, which may be a first for the show.
What's great about this scene is they're both right. Louie shouldn't have to do something he doesn't want to just because he feels obligated, but Laurie just went down on him, so what's the difference?