Finding out that your long-term partner has been playing away has got to be a pretty though pill to swallow - it would be pretty easy to just give up and resign yourself to sitting on the sofa, eating takeaways and wallowing in self-pity.
However, while 26-year-old Dwayne O'Connor admittedly did do that for a little bit, he eventually pulled himself out of his negative mindset and shed three-quarters of his body fat in six months, to craft what the Daily Mail describes as the 'ultimate revenge body'.
Having previously worked as a fitness instructor, Dwayne lost his passion for exercise after discovering his girlfriend of four years had been having an affair.
He told MailOnline: "It all started five years ago, I was a young man in a long-term relationship.
"I was working as a local fitness instructor, I also played basketball regularly and lifted weights three times a week just to keep myself healthy and look decent.
"My relationship was four years old at this point but just like most love stories it ended in heartbreak."
He continued: "I came to realise my partner was having an affair and once I confronted her about the situation she posted her keys through the door and said it was over.
"My confidence, pride and self-worth were at an all-time low. I stopped playing basketball and l I even stopped going to the gym other than to go to work."
As a result of his new, unhealthier lifestyle, Dwayne quickly began to gain weight, bingeing on junk food in an attempt to help him manage the breakup.
He told the newspaper: "I started to put on weight and before I knew it, I had stretch marks on my stomach and three chins. I started eating junk food on a daily basis and every time I looked in the mirror I would be disappointed in myself.
"Physically, mentally and emotionally I was at breaking point. My friends didn't like to see me down, so they helped me get a few sessions back in the gym, it really did mean a lot."
That's when Dwayne decided to get his life back under control, completely overhauling his diet and exercise regime.
"I was still overweight, but I was lifting five times a week, getting stronger all the time, and most of all I was getting my confidence back," Dwayne recalled.
After only six short months, Dwayne had managed to get his body fat down from 28 percent, to seven percent.
"Six months might seem fast but because I was a fitness instructor before the break up, I already had a few years of training behind me, so I had a decent amount of muscle already," he said.
"The motivation came from the lack of control I felt in my personal love life. When a situation happens like an affair there's not much you can do about it. You just have to sit there and let it happen.
"However, when it comes to self-confidence and personal development every hour is an hour where you can do something to be better than you were the previous hour. Anybody can do it - they just need to be structured and consistent, have faith and work hard.
"I went on a journey looking for progression instead of perfection and that's where I found balance. I'm much more comfortable within myself and I try to send that positivity out to others."