“My 3-year-old told me.”
The thread quickly filled with hundreds of devastating, jaw-dropping stories of betrayal.
Here’s what people shared:
1.

“I had gone through my daughter’s closet and had a bag for Goodwill.
He never does it.
So, I opened the trunk of his car, and there was his gym bag.

But he hadn’t been to the gym in over a year.
I opened the gym bag, and it was filled with our marital sex toys and some basic toiletries.
He was cheating on me, USING OUR SEX TOYS with another woman.

I got into his phone, found more, and confronted him.
u/MsFlibbertigibbet
2.
“He’s a photographer, and it’s not unusual for him to travel for photoshoots.

I found photos and videos of him having sex with other women that he was photographing.
I trusted him so completely that he got too lazy to hide it anymore.
I never would have touched his camera before our daughter was born.

I just wanted to print the photos.”
u/darkly_shaded
3.
“I caught my fiance and my flatmate in my bed together two weeks before the wedding.

u/rowenaravenclaw0
4.
“She broke things off when she got pregnant because she was sure it was someone else’s baby.
Turns out I was one of three possible dads.

u/Active-Stress2392
5.
She complimented a picture I had just taken of him.
He had sent it to her while sitting right next to me.

This all went down at the Eiffel Tower just a few hours into our supposed two-week vacation.”
u/AmyLacex
6.
I checked each condom, too, to check the serial numbers on them.

And I counted them.
There were seven left in a box of what was 10.
When I came back, there were still seven condoms in the box.

I checked the serial number of the box and condoms.
He’d literally replaced the EXACT same number of condoms, thinking I would never know.”
u/nepsola
7.

“I found a CD of love songs in her car.
I skipped through the tracks, and it was obviously a mix tape of love songs.
u/MrBenzedrine
8.

“I dreamed of it the night it was happening.
I was away visiting my parents.
I never knew who did that, but it merely confirmed what I already knew.”

u/bluetoedweasel
9.
I went home and didn’t say why, then ended it a few days later over text.
u/nuntend0
10.

So, I wrote down her mileage before she left.
When she returned, she had only driven 80 miles.”
u/salmiakki1
11.
“My 3-year-old told me.”
u/FourTheyNo
12.
“She was a bartender at a popular spot downtown.
About 10 minutes later, my phone was blowing up with her messages.
I didn’t reply to any of these messages.
I let her ramble until she finally said, ‘So, we can’t get past this?’
I replied, ‘No, I don’t think so.'”
u/apocalypticradish
13.
He had recently moved to my town for work.
He was also visiting his family at the time of the call.
Little did I know that he was visiting his mom, as well as his wife and kids.”
u/wyntr86
14.
My name was two up from the bottom, and we’d been dating for over a year.
One of the names below mine was her male friend with whom she swore nothing had ever happened."
u/atticusfinch1973
15.
“She told me right after she came back.
Her cheating wasn’t the worst part, though.
Everyone knew what was going on.
Thanks, I guess.”
u/Poschta
16.
I picked it up and asked what it was; she acted like she didn’t know.
It only had one number in it, and it was his."
u/MentalEntropy
17.
She said hi and asked what I thought about my girlfriend going home once a month.
I told her that it didn’t bother me.
u/dring157
18.
“I noticed on the phone bill that she was texting a certain number 600 times a month.
It seemed familiar, and when I looked it up, it was one of my friends.”
u/Civil-Research-1789
19.
“I found out my ex was cheating on me when she was at home visiting her parents.
Obviously, it was all my fault for checking my emails.
I am happily married now and glad to have gotten out of that horrible relationship.”
u/Bigboss910
20.
“The other woman called my office on the day that we closed on our house.
u/STLCityAmy
21.
I’m very trusting, but my gut screamed at me that something was wrong.
It was enough for me to file for divorce.”
u/themorganator4
22.
“I hated HOW I found out, but I’m glad I found out.
I went through her phone because she always wanted to go through mine.
I see now it was a ‘guilty conscience’ thing.
u/chavooooo
23.
“I arrived at her place for a date just as two other guys arrived.
u/firemage555
24.
I worked at night on Fridays, so I didn’t drive back with her.
I locked my keys in my car at about 2:00 a.m., trying to leave work.
We had been married for nine months at that point.
She married that dude six days after our divorce was final.”
u/nam2212
25. u/Emotional-Prompt-444
26.
“My fiance was driving us home from a party and using her phone to navigate.
I was completely devastated, but I screenshotted everything in case she decided to deny it later.”
We’d been together 16 years, and I never saw it coming.”
u/Redcrosse
27.
“He used my phone to cheat and then tried to ghost her.
He told her he had surgery and then planned never to speak to her again.
She called and asked for me because my name appeared on her caller ID when he called her.
It went kind of like this: ‘Hi, can I speak to [my name]?’
‘This is she.’
‘Oh, I’m just looking for [my husband’s name].
I am worried about him.’
‘Well, I’m his wife.
Maybe you’re free to tell me why you want to talk to him.’
‘His wife???'”
u/IndifferentGuavas
28.
Then, I dumped her straight away."
u/Alien2522
29.And: “I caught my ex attempting to cheat but getting rejected.
We were on a weekend trip trying to fix our relationship.
We had some drinks, and then he went to sleep before me.
His phone was blowing up, and I went to silence it since it kept me awake.
I saw he’d been messaging this girl all night and confessed his love for her.
She told him she wasn’t interested, lol.”
u/TrashPandaAntics
Note: Submissions have been edited for length and/or clarity.