FOR most people, cheating is the worst thing they could ever imagine their partner doing. However, one man's reality went from bad to worse when he discovered who his girlfriend had cheated with. In a Reddit post, the unnamed user offered some background on his family before detailing his partner's betrayal. "I was a young dad, me and my now late wife had my son before we were even 17," he explained. He shared how "tough" he has found life as a single dad since his wife passed away at just 22.

"I think up until this I did my best," the original poster told his fellow Reddit users. He explained that he previously didn't have time to pursue romantic relationships. "I threw myself into being a dad and concentrating on my business," he said. He explained that there was "never anyone serious enough to introduce my son to.". However, three years ago he met his girlfriend and was soon "head over heels.".

"The first six months or so were more casual but when we realised we loved each other, we made it official," the Redditor recalled. He revealed that he had intended to take the next step before she admitted to the shocking affair. "I was even planning to ask her to marry me next month on her 26th birthday," he wrote. The happy dad had hoped to ask his 17-year-old son to be his best man on the big day.

Despite their seemingly happy situation, the poster recalled his initial hesitance over introducing his new partner and son. "I didn't introduce them at first due to not being sure how he'd take it, so we waited a while," he explained. "But after they met last year, we've all hung out and everything was all good.". Private Investigator Aaron Bond from BondRees revealed four warning signs your partner might be cheating.

They start to take their phone everywhere with them. In close relationships, it's normal to know each other's passwords and use each other's phones, if their phone habits change then they may be hiding something. Aaron says: "If your partner starts changing their passwords, starts taking their phone everywhere with them, even around the house or they become defensive when you ask to use their phone it could be a sign of them not being faithful.".

"You should also look at how they place their phone down when not in use. If they face the phone with the screen facing down, then they could be hiding something.". They start telling you less about their day. When partners cheat they can start to avoid you, this could be down to them feeling guilty or because it makes it easier for them to lie to you. "If you feel like your partner has suddenly begun to avoid you and they don't want to do things with you any more or they stop telling you about their day then this is another red flag.".

"Partners often avoid their spouses or tell them less about their day because cheating can be tough, remembering all of your lies is impossible and it's an easy way to get caught out," says Aaron. Their libido changes. Your partner's libido can change for a range of reasons so it may not be a sure sign of cheating but it can be a red flag according to Aaron. Aaron says: "Cheaters often have less sex at home because they are cheating, but on occasions, they may also have more sex at home, this is because they feel guilty and use this increase in sex to hide their cheating.  You may also find that your partner will start to introduce new things into your sex life that weren't there before.".

They become negative towards you. Cheaters know that cheating is wrong and to them, it will feel good, this can cause tension and anxiety within themselves which they will need to justify. "To get rid of the tension they feel inside they will try to convince themselves that you are the problem and they will become critical of you out of nowhere.  Maybe you haven't walked the dog that day, put the dishes away or read a book to your children before bedtime.  A small problem like this can now feel like a big deal and if you experience this your partner could be cheating," warns Aaron.

Since then, the two had no interacted much as his son had left for university. However, the Reddit user picked up on a strange shift in his girlfriend's behaviour. "I've noticed as the past couple of weeks have gone on, she's been a bit quiet and moody," he said. "I've asked her and she put it down to being overwhelmed.". The man also noticed his son had become a "bit withdrawn" but just assumed he was busy with college life.

However, when his girlfriend's mood didn't change, he eventually "called her out on it.". "She broke down and admitted she cheated on me. Just like that," he said. His "shock" was magnified when she revealed who she had cheated with. She revealed that she "was out with her mates" months previously and had "bumped into" her boyfriend's in the pub. The pair got drunk and ended up getting intimate in the back of a taxi at the end of the night.