A heartbroken husband in the United Kingdom has put his wedding ring up for sale online after learning six days into his marriage that his bride was having an affair with his friend.

Andy Mitchell, from Fife in Scotland, posted a picture of the rings he and his wife Meaghan exchanged at their £30,000 ($57,600) dream wedding in Mexico on June 3, the Daily Mail reported.

But Mitchell accompanied the listing with the news that just days after the ceremony, he discovered his new wife was having an affair, which he claimed started on her hen night.

Mitchell's post has been shared thousands of times across social media, and he has been met with a wave of support . Photo / Supplied
Mitchell's post has been shared thousands of times across social media, and he has been met with a wave of support . Photo / Supplied

In another blow Mitchell, who wants £400 ($770) for the wedding bands, said he had paid £2000 ($3800) to have his vasectomy reversed after his new bride said she wanted children.

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He claims she later phoned to tell him his friend was "better in bed".

Mitchell told MailOnline he met Meaghan in a pub two years ago and they enjoyed a whirlwind romance.

But he was devastated when she phoned him after their honeymoon, and told him to leave the house they shared because she was having an affair with his friend.

Mitchell, who has a 10-year-old son from a previous relationship, said Meaghan and her new man were sleeping in a car.

He said his former friend had phoned to tell him he was "going to make a go of it with Meaghan".

Mitchell told MailOnline: "I have known him for ten years - we'd have a pint together in the pub.

"He said he wanted to take my wife. I said good luck - you'll need it."

He added: "Meaghan used me. I paid for everything, she didn't even work. The last time I spoke to her she started saying he was so much better than me in bed."

Meaghan today admitted she had left Mitchell for another man but insisted they had not slept together until after the wedding.

Photos of the wedding on Facebook show the pair together on the beach. Photo / Supplied
Photos of the wedding on Facebook show the pair together on the beach. Photo / Supplied

The couple married in Akumal Bay Beach Resort, Mexico, at a lavish wedding attended by friends and family, on which they spent £6000 ($11,500).

Photos of the wedding on Facebook show the apparently happy couple frolicking on the beach with their well-dressed guests.

But barely a fortnight later Mitchell made very public statement that their marriage was over.

He posted on the Facebook group Facebay Fife: "Hi, recently I got married in Mexico on the 3rd of June and this was the wedding set I used while Meaghan Mitchell said her marriage vows."

Mitchell claimed: "However, six days later I found out she started having an affair on her hen night and it carried on for eight weeks through our dream wedding."

He added: "We had no secrets. We trusted each other completely.

"All her friends and family are embarrassed. They don't want anything to do with her."

Meaghan said: "We did not have sex on our hen do - it was after the wedding. I didn't do anything on my hen night.

"We know what we've done and take full responsibility. I was young and naive when I first got with him."