How did you find out you were getting cheated on?

How did you find out you were getting cheated on?
A flirty text from a guy popped up on while we were looking at her phone for a place to eat. He complimented a picture I had just taken of her…she sent it to him while around me. Bold. Also this happened in the Eiffel tower, only a couple of hours into what was supposed to be 2 week vacation.
My daughter told me.
My neighbor told me that there was a odd car parked in my driveway when the ex was supposed to be at work.
He gave me his phone to hold while he was having a minor medical procedure and while in the waiting room, a text came through. It said something like "Ha, so we can dothedeed again?" and I was totally confused, so I scrolled up through the text thread and read "I'm sorry if you feel guilty" and "No, I'd only feel guilty if I still loved her" and that was the end of that relationship.
A man knocked on my door and introduced himself as the husband of a woman that my husband worked with. He was there to tell me that his wife was having an affair with my husband. My husband never came home after that. He got an Air b’n’b and told me to get a lawyer. We had been together for 24 years.
Phone bill. She was texting some random number 600 times a month. I thought I recognized the number and when I put it in my phone it was a buddy of mine.
When I saw her reflected in his sunglasses in a picture that he texted me.
When she left me cause she got pregnant, and thought it was a different guys. Turns out I was 1 of 3 possible dads, couple years later and a few paternity tests and turns out it was mine.
He pocket dialed me while bragging about it to a co-worker. The universe really had my back on that one.
I had to work a night shift on my birthday. When I got home the next day and he came to see me, he was covered in hickeys.
The girl messaged me from an anonymous IG account letting me know it happened while I was out of town. Maybe I wouldn’t have believed it if she didn’t provide specific details, like the type of car I drove that I had let the car-less cheater drive while I was gone.
Old school. Her little sister ratted her out.
I just asked
The idiot saved her number as 'my little hoe'
He told me directly..his family members found out about it and I guess he thought he better told me since it was out in the open
Had to cancel our plans as some important work stuff came up. Ended up wrapping up earlier than expected. Decided to drive to her place to surprise her... I was the one who was surprised when I noticed someone else's car in her driveway. Literally and figuratively.
My ex came to pick up his stuff from my house…..the girl he cheated on me with drove him to my house….and we met……
The high schooler he was paying for sex left her underwear in my apartment.
She was sleeping with her boss, in the most clichéd excuses. I really think if she’d said to me the passion and love was gone, we could’ve divorced amicably, because I was miserable too. But when she cleaned out our house and bank account, well, that changed the dynamic just a smidge. Fuck you, Michelle
My ex started a job in my hometown, pretty far from where we lived. She was going to dinner and snuggling her work boss/boyfriend in a restaurant where a couple people I went to high school with would spend time. So of course one of them saw her and told me. She wasn't very bright.
Checked my significant others phone. Had dominos in his contacts list. Thought it was weird that he had dominos number saved and called the number. It was his ex dun dun dun.
My nest cam picked up my dog barking when my soon to be ex wife got home from dropping me off at the airport at 4am. Turns out the guy was on his way to my house while she was dropping me off.
She messaged me naked pictures of him in our shower. He tried to play it off like it was an old pic, but it was clearly my shower with my stuff in it. Some people have a ton of audacity and zero shame.
Chlamydia
He stopped smiling at me. Stopped kissing me good night. Stopped holding my hand. He became very short and inpatient with me, mean. Didn't seem to want me around. Spent lots of time in his office. Was on his phone a lot and would get messages and be smiling. Then he asked me for a divorce. I decided to snoop. I opened his laptop and saw all the evidence. It destroyed me.
She told me when I proposed. At least she didn't let me get married to her.
He asked me to go unlock his car since he’s locked his keys inside. Friend he told me he was with was nowhere to be found. Checked his phone and found the messages. He wouldn’t admit to actually sleeping with her until 2 years later. Then asked for an open relationship and got upset when I got more dates than him. We’ve since split, thankfully.
She told me one night, after being together for over a year at this point, that she has cheated on every boyfriend she's ever had. I should've paid more attention to the red flags while we were dating but I was so in love. Lesson learned. Never again..