Yahoo Lifestyle 
WATCH: Cheating husband gets instant dose of karma
An unfaithful husband, who wanted to see if his ‘girlfriend on the side’ would cheat, has been given an instant dose of karma as he watches her flirt with a hot personal trainer.
Introduced as a bitcoin millionaire, married man Adam is apparently debating whether to leave his wife for his girlfriend, so he decides to organise a sting with YouTube channel To Catch A Cheater, to test her loyalty.
As part of the honey trap, his girlfriend is approached by a personal trainer who instantly begins flirting with her.
The girlfriend, who is a Spanish teacher, avoids answering the question as to whether she has a boyfriend and seems impressed when the trainer speaks Spanish as well.
“I’m a personal tutor, so I do that sometimes on the side," she tells him.
They quickly decide to trade personal training sessions for Spanish tutoring before swapping numbers.
The exchange then becomes even more steamy when he starts showing off his muscles. She tells him she wants to "work on her butt" and "can be a lot of trouble" before they briefly dance and hug in farewell.
Clearly outraged, Adam says he considers it all cheating.
“Who else is she giving her number too?” he says in the clip.
“I’m going to do the honourable thing and stay with my wife.”
*rolls eyes*
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