People of reddit, how did you catch your cheating ex?

Late to the show but i got a couple stories: Which time ? High school sweet heart story first : 2 1/2 year relationship on / off... I started getting a strange feeling when she became distant figured she just wanted space , she was hanging around a lot with one of my friends so I figured it was all good. I asked her point blank one night she denied it... So I was okay with it but then a few days later I get an aim message from one of her friends saying that she cheated ... Ended it that night

The harsh one who on never admitted it : I trusted her fully , we lived together for a few years had a dog and credit card together basically playing marriage. She wanted to go out drinking with her friends while I went to play ultimate Frisbee with a big group of people. She said she was going to sleep at a coworkers house that night since it was super close to work and she could have HIS roommates bed since he was out of town. I told her I wasn't comfortable with this, since she would tell me about how her coworkers would hit on her all the time and they wanted her. She said its fine trust me , so I did, I "loved" her. There was just something off all night and the next day, super short text messages and no goodnight text which was super odd. The next day was awkward not much eye contact no real kissing. 2 days later we had empty heartless sex, I knew something was wrong.I asked her what was up , she wouldn't say anything. Couple days later she sat me down read me a speech to break up with me, was moved out a week later, but wanted to keep using the apartment as a party pad one some weekends. Long story short we fought a lot, I miss my puppy, my neice has a terrible evil god mother , and I let her under skin after months of her antagonising me. She denies cheating fully but the story doesn't make sense. The week before the break up she bought a bunch of furniture for the apartment. She said it was a long time coming and only with me because she thought she had no other choices. First off if it was a long time coming you wouldn't have became the god mother of my niece or convinced me to get a joint credit card. She never admitted to cheating but most people I know think she did, but she would never say that because she can't admit she can be a bitch sometime. She pretends she was an angel through the entire break up and used my reaction after being antagonised for a few months as a see he is crazy.. No I am just an asshole and I got fed up with your shit.

Don't even know how to tldr this.

/r/AskReddit Thread