<human>: Give me the gist of the text in a nutshell

This was actually a while ago, but oh well. I was an idiot and my friends were idiots and we were doing prank calls(like idiots, but it was fun). Now, one of my friends works at a McDonalds and tells me to phone them. So I oblige.

He tells me to pretend I'm Gary(changing the names here), and put on a southern US accent(which is weird because we don't live in the US), and of course I do.

I say what he tells me to, without thinking about it, while he giggles the whole time, and the conversation goes like this:

"Hi, can I speak to Mary"

"Pardon me?"

"Uhhh, this is Gary, may I speak to Mary."

"Mary is not working today do you want me to tell her something?"

"Yeah, uhh, can you tell her I want to go square dancing at the rec centre?

"The what?"

"I want to go square dancing at the rec centre."

"Okay, is that all?"

"Yes ma'am, goodbye."

I don't know what happened but my friend finds it hysterical. Fast forward a few days and Barry(the name I'll use for my friend) is suspended from his job.

I ask why.

Gary is Mary's ex boyfriend, but Mary still loves Gary, and Barry, told me(Larry) to ask out Mary by pretending to be Gary, and Mary showed up to the rec centre but there was no Gary, and Barry told Mary that HE pretended to be Gary, and he thought it was hilari...

...ous.
<bot>: I prank called a McDonalds, and unknowingly(didn't think about it) impersonated an employees ex boyfriend and asked her out, not knowing she'd desperately want to show up.