Not bad. :D
Graphics: Quirky, detailed, but not quite realistic characters. Well-developed backgrounds with simple fill coloring. Jerky, lurchy animations. Many scenes are little more than photographs with one or two poses per character, but these shots have nice composition nonetheless. THIS is how you execute a "talking heads" cartoon in less than a week.
Style: Music, voices and what little detail there was in the graphics, all came together and contributed to the whole. I thought winning the doughnut was a nice touch. Not quite over-the-top like winning the lottery, not as cliche as the other nice surprises were.
Sound: Well-recorded samples and just the right ammount of music. The acting was cheesy and ham-fisted, of course, but I assume that's what you were going for.
Violence: Okay, I get it, he's gonna get hit by a truck or something as soon as he steps outside. Just get it over with... oh, no. He survived. Okay. Well, I guess he got a promotion, now he's gonna get mugged on the street and all the money in the world won't save him from the mugger's knife... oh. Okay, he made it home... oh... Oh, I get it, he's gonna find his wife in bed. Okay. Then he'll either shoot them both with a gun or slit his wrists. People in these flash cartoons ALWAYS slit their... wait... what the... is this a loop? Replay? What the...? Has this guy ever been to newgrounds before? It's like telling a joke with no punchline.
Humor: The acting was kinda funny due to the cheese factor, but that's all. If there was a joke here, I guess it's "cuckolds exist! Ha!"
The thing is, the way you set it up, the audience sees it coming a mile away, and they expect a twist of some sort. You didn't provide one. That's like, standard procedure on The Internets. If you're attacking a theme that's older than time itself, like cuckold jokes, you've gotta at least TRY to mix it up a little by doing somehting unexpected.
I mean, think about it. The audience knows, from the moment the dude with the bad 70's moustache starts talking, that he's gonna have something bad happen to him. And then as soon as he says "Honey! I'm home!" the audience knows that there's going to be a cuckold joke. You'd have to be dead not to see it coming.
So... why would you end it this lamely? The audience was expecting something to happen, and instead... nothing happened. The thing the audience predicted on like, page 2, was exactly what happened. No more, no less.
And it's not like we identify with the protagonist or anything... his lines are so cheesy, we don't even think of him as a person, but as a device for advancing the plot. We expect an anvil to fall on him or something, because that's what classic media has trained us to expect when a character says "Ah, what a beautiful *noun*."
You had the opptounity here to either eclipse those expectations with some kinda crazy, over-the-top disaster, or else surprise us with a twist ending, like his wife WASN'T in bed with another man the way we expected her to be, or Moustache Dude goes "Kinky! A threesome! This is the best day ever!"
But instead of playing with our expectations, you just... showed us exactly what you foreshadowed. No more, no less. That's boring.
Overall: Competent animation, despite rough surface. Voice acting was cheesy, but recorded VERY well. Writing was a huge disapointment. No jokes at all despite a cheesy comedic look & feel.
I like the fact that you actually tried to write, though. You have all the neccessary parts here to tell a story. Next time, just work harder on playing with the audience's expectations. Telling a joke is like a magic trick. Make us watch your right hand, then BAM hit us out of left field with something unexpected.
But toy with us. Don't just show us stuff that happened, unless the stuff that happened is inherently weird and interesting. Cuckold jokes are ancient history man. You gotta punch the old material up a bit!