At the dinner party Diane overhears Adam talk about leaving his wife because she was with the pool man. Diane is bitter at him, so in her self-indulging dream she is filling in the blanks, reconstructing the humiliating scenario with a fictional character Gene who works for "Gene Clean" pool cleaning company.
"Cleaning the Gene Pool" — a pun? A connection to the business of the heavy-set woman next to Ed's office? "Health+Plus Enzymes — Natural Cell Stabilizer"
The pool man's name is GENE, he is a POOL cleaner, he's having SEX with Adam's wife. Put three of the most prominent aspects of his character together (those three things are almost all we know about him) and you get "genepool sex", which could indicate incestuous abuse. — Darklite
'Anti Oxydants' appears misspelled: typically it is spelled anti-oxidant (with an i). Perhaps this is an accident. Or maybe, because oxydant sounds so much like accident, that this fantasy represents her idea of an anti-accident — that is, something that can fix the mess the terrible event led to. Sadly, what little hope there is of fixing it dies with the woman in that room. She puts up a struggle but is soon dead. — JasonLP
Thread: Health+Plus and Gene Clean
His famous lesbian hair cut helped me to realize that the whole scene could have been a transposition of a scene involving Diane and two other lesbians. Then Lorraine throws away Adam from his home and it leads me to what I consider to be the right explanation of why the neighbor Laura has switched her apartment with Diane... After all the choice of Billy Ray Cyrus was important, and the neighbor's name is really Laura DeRosa (= Lorraine in the dream). — gandalf36
I believe Billy Ray Cyrus was chosen because he's some sort of link to The Cowboy, the specifics of which I'm not sure, but they are most likely linked to Diane's sexual abuse as a child. The reason I believe they are linked is because Cyrus never got any real respect in the country music community for his bubble-gum image... he was regarded as a "Hollywood" cowboy, someone who took elements of a genuine style and altered them to appeal to the mainstream. The same could be said for The Cowboy and how he is dressed as an old-school Hollywood cowboy... colour-coordinated, neat and clean. — Darklite
Casting Trivia
Lynch: "I saw Billy Ray in an interview and hearing him talk — I was surprised. I suddenly saw Billy Ray in this role and that was it."
The singer said he had been a fan of the quirky director "since 'Eraserhead,'" and instructed his agent to arrange a screen test. Apparently Lynch liked what he saw, and cast Cyrus in the upcoming TV film. — thecityofabsurdity.com
Billy Ray concerning his daughter Miley Cyrus: "Were it not for David Lynch, Miley would never have been Hannah Montana." This is because Lynch employed Billy Ray in his 2001 masterpiece Mulholland Drive, which might have given Billy Ray the juice he needed to star in the medical drama Doc, where Billy Ray allowed his daughter to take small acting roles for the first time. — nymag.com
Billy Ray Cyrus is a songwriter and specifically famous for his song "Achy Breaky Heart". The lyrics match the plot of the movie amazingly:
Achy Breaky Heart
You can tell the world you never was my girl.
You can burn my clothes when I'm gone.
Or you can tell your friends just what a fool I've been
and laugh and joke about me on the phone.
Or you can tell my arms go back to the farm.
You can tell my feet to hit the floor.
Or you can tell my lips to tell my fingertips
they won't be reaching out for you no more.
But don't tell my heart, my achy breaky heart.
I just don't think he'd understand.
And if you tell my heart, my achy breaky heart,
He might blow up and kill this man.
You can tell your ma I moved to Arkansas.
You can tell your dog to bite my leg.
Or tell your brother Cliff whose fist can tell my lip.
He never really liked me anyway.
Or tell your Aunt Louise.
Tell anything you please.
Myself already knows I'm not okay.
Or you can tell my eyes to watch out for my mind.
It might be walking out on me today.