These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV from the film:
Ear Worm: "My love for you is like a truck, Berserker!"
And to a lesser extent, the little girl who buys the cigarettes.
"Funny Aneurysm" Moment: The part where Veronica and (especially) Dante berate each other over their sex lives was played for laughs in this movie. However, in Chasing Amy, Holden has a similar reaction to Alyssa when he finds out about her previous sexual experiences, which was played entirely for drama and is why their relationship ultimately didn't work out. And that was in turn based off of Kevin Smith and Joey Lauren Adams' relationship.
Though due to the film being made for only $30,000 (the soundtrack cost more than the film). Smith had to use one actor for four roles, plus some weren't professional actors (including Smith) themselves, so this was bound to happen, though the film is mostly Narm Charm in a way.
Wangst: Lampshaded. Dante does this all the time, to the point where Caitlin comes to visit him specifically because she knows he's probably spent the whole day agonizing over the wedding announcement.