I actually feel sick for all of these people.
Reddit useru/h3llofaRideposed thequestion, “What’s the worst cheating story you’ve ever heard?”
The replies quickly filled with a bunch of infuriating and devastating stories of infidelity.

Here’s what people shared:
1.
“My dad cheated on my mom with my best friend’s mom who was also married.
I was a teenager at the time, and I unfortunately found out before my mom did.

Guess who had to tell her?
My dad told me I ‘owed it to him’ to not say anything.
u/chelletastical
2.

“I went to the wedding of my then-boyfriend’s friend.
Easily the best wedding I’ve ever been to absolutely a smash.
The bride was the lead singer in a band, and they performed and killed it.

Just a great party all around.
People had a great time, and the couple seemed so happy.
The best man gets up and takes a call.

The mood absolutely falls and everyone gets quiet.
I ask my boyfriend what’s going on.
She told him that morning.

u/Panserbjornsrevenge
3.
I found out he was cheating on me with her.
He told me he had lied to me and that she was just a friend and not his cousin.

As if that made it any better.
Like, thankfully they aren’t cousins, but yes, he still admitted to cheating on me.
Turns out it WAS his cousin.

He was cheating on me with his cousin.
I was so disgusted and disturbed, I vomited all over the floor.
And, my grandpa died the day I found out.”

u/livindagoodlife
4.
“One of my wifes cousins died of cancer after a 30-year marriage.
u/panachi19
5.

I was also in the thick of an accelerated nursing school program and it was finals week.
ALSO, my car had just broken down in the drive-thru of a Whataburger that same weekend.
The girl he cheated with?

A very close friend who was getting married in a month.
She begged me to not tell her fiance (I told him).”
u/Creative_Yogurt3242
6.

“My ex and I were together for eight years!
She had been sleeping with her boss for the last year of our relationship.
We were looking at getting a new place to rent.

She was adamant that she wanted to live in this very specific block of flats.
Turns out her boss lived downstairs from us.
They were having sex right under my nose.”
u/SlowEngine7640
7.
“I was an IT contractor for the Department of Defense.
We got a keyword alert on an email conversation.
So, we went and checked out the email and the email thread.
He, of course, was married and had four kids with his wife.
And REALLY don’t do stupid stuff on DOD servers.”
u/NoeTellusom
8.
“My best friend.
He was madly in love with a woman and wanted to marry her.
They lived together and were very happy.
As a birthday gift, she bought him a plane ticket so he could fly out to see me.
While he was with me, he would talk to her every so often.
Every time he got off the phone with her, he would tell me something just wasn’t right.
His spidey senses were tingling.
He came home to find evidence that she’d had someone over at their place.
She initially denied it, but eventually she admitted to having a male coworker in the house.
My buddy was devastated and heartbroken.
It took him years to recover.”
u/casino_night
9.
“My bio mom’s best friend was diagnosed with stage-four lung cancer.
We moved her, her husband, and her daughter in with us.
She died alone because she went to her ‘best friend’ for help.
I don’t speak to my bio mom anymore.
At the time, her dead best friend also had a 19-year-old daughter who was homeless with a toddler.
Some people are disgusting.”
They met when said daughter was 13.
My bio mom was her case worker for mental health support.
She crossed a huge professional boundary doing this.
Her mom who passed wasn’t the only victim here.
My bio mom was also married, so there’s other children involved, etc.
SO many people were hurt by this.
It’s truly sickening.
During my bio mom’s pregnancy, her mom actually also got stage-four lung cancer.
She died within seven weeks and never met bio mom’s baby.
I kind of feel like it was her fault, in a sense.
I truly believe karma can and WILL get you through loved ones.”
u/concernedoldersiss
10.
“Former colleague of mine in his mid-30s.
He was living with his long-term girlfriend and they had been shopping for engagement rings.
No apology and no further explanation.
She then immediately blocked him and left him to deal with the rent and other bills on his own.
He was a nice guy.
It was horrendous to see that happen to him.”
u/FeaturelessFloof
11.
“I had a roommate in college who was a big cheater.
He cheated on her all the time.
One weekend, she came down to visit and he was not home.
He knew she was coming.”
“She hung out with me, watching TV and waiting for him.
Wed known each other a couple of years and were friendly.
She started out excited for him to come home, wanting to show him the lingerie.
Then, she got really down when it was obvious he was not coming home.
She actually flashed me the lingerie briefly.
I think she just wanted someone to see it.
She ended up changing out of it into sweats and sleeping on the couch.
They broke up when he came home in the morning.”
u/opuscule_cat
12.
“I know someone who had a multi-decade affair with a married father of four.
The worst part is that her husband had suspicions she was cheating, but still went through with it.
If you have any doubts, do not get married.”
u/Blueeyesindisguise
13.
The cops obviously were suspicious and found out he had hired her.
He was fired from his job at the school and it crushed my friend."
u/Felaia
14.
“I know someone who regularly cheated on their out-of-town girlfriend.
She moved to his state and they got an apartment together.
While in the shower, his phone was buzzing with messages.
‘I know who you are.
u/Medievil_Walrus
15.
“Firefighter asked another firefighter to cover his shift by working for him.
He then went and had sex with that guy’s wife that day.”
u/wehrmann_tx
16.
“My cousin told me this while he was in boot camp.
There was a guy who had a girlfriend/wife and a girl who had a boyfriend/husband.
The guy and girl decided to cheat on their S.O.s the day before graduating from boot camp.
u/Specter-Chaos
17.
“My friend was partying with her boyfriend and some other people.
Her boyfriend had sex with another girl on the same couch as his girlfriend while she was passed out.
She woke up part of the way through it and just didnt know what to do.”
u/Kind_Of_A_Dick
18.
“I was working in IT and needed to perform manual backups of sales laptops.
They left nothing to the imagination.
The guy also saved screenshots of texts between him and his wife.
She had found out about the affair and was in the process of divorcing him.
It was really messy kids involved and all that.
But, I told him Id keep it between us, which I did.
Data was deleted and that was it about it.”
u/loztriforce
19.
He had some suspects but never imagined it was another police officer.”
u/Classic-Row-2872
20.
And it was a C-section birth.
No idea how she did it.”
u/Picklesadog
21.
“This girl in high school cheated on her boyfriend with the guys who bullied him.
Then, she got bullied by all their girlfriends.”
u/The3rdPedal23
22.
“Years back, in my early 20s, there was this one guy in my extended friend group.
He had just started dating this girl.
She was maybe a few years younger than us.
Probably about 18 or 19.
A bunch of them had a night out.
I didn’t go out, but I heard about what happened later on.
This friend of mind got extremely drunk.
The girl he was seeing helped him back to his house.
His dad was still up and heard them trying to get into the door.
This was the first time the girl had met his dad.
The girl ended up having sex with the dad that night.”
u/Viazon
23.
Shes a disgusting, selfish, terrible person.
Shes setting herself up to be miserable for the rest of her life.
u/kkc0722
24.
Truly an amazing person, highly competent, born leader, funny, the list goes on.
you could imagine how that went.
When that failed, he went and started an affair with a 19-year-old nurse-in-training who worked for his wife.
She learned about the affair when the girl’s mother knocked on her door."
u/Telesto1087
25.
“She cheated on me with her cousin’s fiance while I was out of town for work.
This fiance had also cheated on his partner with her own mother.
Moral of the story: trust and listen to your gut.”
u/FarmerSoggy69
26.
“A friend of a friend ended up dating her uni professor for a bit.
He was older than her, but it was getting serious and they were making life plans together.
On weekends, he would regularly go visit his ‘mother’ in another city.
Mind you, this was a university professor in his late-40s”
u/Sad-Stick-3114
27.
She was trying to get evidence to divorce him.
Then, one day, the mistress showed up at the door to confess everything.
Turns out he’d cheated on the mistress with a third girl and gotten that girl pregnant.
Divorce happened very quickly after that."
u/aasania
Note: Submissions have been edited for length and/or clarity.