<human>: Could you distill the essence of the text into 1-3 sentences?

So my friend emailed me this today which got me thinking about what are other ill written story lines that have been made: 

My friend Daniel's email: 

"I was watching Saved By The Bell as I'm getting dressed and this is too weird to not say anything.

Scenario:

Zach and Kelly are going to the dance dressed as Romeo and Juliet. It is Monday and the dance is on Saturday. Kelly can't buy the dress cause her parents have so many other kids (which doesn't seem to stop them from buying her other nice clothes). SO, she says she'll get a job at the Max to pay for the dress (even if she gets hired THAT VERY DAY, there's no way that 4 days of work will get her enough money to buy the dress.) OK OK, I know, but she could make good tips - it still takes 2 weeks just to get the first paycheck! OK - so that aside, assuming that she gets hired and makes enough money in those few days, AND gets paid immediately, Zach shows up at her house one night (when she's not working) and surprises her by giving her the dress that he bought with his own money. Then - THEN - she tells Zach she can't goto the dance on Saturday night because she has to work. WHY? WHY CAN SHE NOT GOTO THE DANCE??? SHE GOT THE DAMN JOB BECAUSE SHE NEEDED A DRESS FOR THE DANCE!!! HE EVEN BOUGHT THE SHIT DRESS FOR HER AND SHE STILL WON'T GO?!? THE WHOLE REASON SHE WENT TO WORK WAS TO GET MONEY TO BUY THE DRESS?! HOW MANY OUNCES OF DRO WAS THE WRITER ON NOT TO REALIZE THIS DOESN'T MAKE SENSE?!"
<bot>: Kelly gets a job to afford a dress for the dance, tells Zach she cant attend the dance because she has to work.