(Image source: The Guardian/Tim Stewart)

BY JENNIFER MECKLES

ANCHOR ALLIE SPILLYARDS

You're watching multisource world video news analysis from Newsy.

Every bride worries about her future mother-in-law. Every future mother-in-law worries about her son’s choice of a wife.

For a British family about to be joined in marriage -- a heated email between mom and bride went viral.

ABC has the details:

“The mother-in-law writes -- she has staggering uncouthness, and a lack of grace. She sent this email, and its gone viral. Everybody’s been paying attention to what this woman’s been saying -- that she had no taste, that she’s very tacky, and if she wants to be part of the family then she better get it together.”

Here’s a little family background.

Heidi Withers is a 28-year old personal assistant in London, who plans to marry 29-year old entrepreneur Freddie Bourne this fall.

Freddie’s stepmother Caroyln Bourne, is a well-known flower designer in Devon, England --- and according to her emails, NOT a fan of her future daugther-in-law. (Images: The Daily Mail, The Telegraph)

After Withers spent a weekend at the Bourne family home, Caroyln sent her this scathing email. An example of the more colorful comments include: (Video: Huffington Post)

“When you are a guest in another's house, you do not declare what you will and will not eat - unless you are positively allergic to something.”

“... you do not lie in bed until late morning in households that rise early - you fall in line with house norms.”

“I understand your parents are unable to contribute very much towards the cost of your wedding... If this is the case, it would be most ladylike and gracious to lower your sights and have a modest wedding as befits both your incomes.”

Withers forwarded the email to a few friends... who sent it to a few more... until the email went viral. And the now-dubbed Monster-In-Law Mrs. Bourne, is making headlines across the world:

The Sun calls her -- “The Mrs. Bourne Ultimatum”

The Stir calls her evil, and her words -- “bone chilling”

But not everybody thinks so. ITN interviewed the editor of “Lady” magazine who argues the importance of manners as a guest in someone else’s home:

“I think that women of a certain age, all over the country, will be cheering Mrs. Disgusted-of-Dawlish-Devon to the rafters for having had the guts to set it out before this young woman entered her family.”

And blogger for The Frisky agrees:

“Think about it from this woman’s perspective—a middle-aged British woman contending with her son’s soon-to-be wife failing to conform to any of her prescribed behavioral norms.”

A situation which an OpEd writer for the Independent says -- is about class:

“It is about class, of course, not in an inexorable Marxist sense, but in the old-fashioned British way of class-in-the-head, of reference groups, of styles and stances... it remains one of the great diversions of English life.”

On a final note -- Freddie and some friends recently lauched a catering company, called Mise-en-Bouche Ltd. Some media wondered if the whole incident was - perhaps - a PR stunt. Bourne has denied those claims. (Image: The Guardian)

Reports say the groom’s biological mother actually gets along great with Withers. The couple has been spotted together since, leading to belief the wedding is still on. No official word yet if Mrs. Bourne will be in attendence.

Transcript by Newsy.