I was married at one point to a girl that I thought I truly loved. We were together for 12 years and never fought. I trusted her with my life. We built a life together, bought a house, got a dog, found good careers, etc. She felt like a true best friend and lover. She was like a sweet librarian type, most innocent person in the world to me.
That is, until one day she was hanging out with her cousin really late into the night and wasn't responding to texts. I was genuinely worried that something happened, so I started calling over and over again. I was about to freak out thinking she may have got into an accident or something (wasn't like her at all to not answer). Well, she did finally answer by accident, and she threw the phone in her purse so I could hear everything in the background. As it turned out I got to hear her with another man. I got as far as hearing her starting to suck his dick until I couldn't take it anymore.
We had the same phone plan, so I looked up call/text records. I figured out which number was his and saw that she had been texting this guy constantly - hundreds of times a day. She had been living a double-life for over a YEAR! Suddenly all the late nights with 'friends', 'spending the night at her cousin's', 'working late' made sense. I started thinking things like "how many times did I have sex with my wife when she got home late - just after she finished banging some other guy?". It amazed me how she was able to do this without making it feel like there was a giant elephant in the room.
This whole thing threw me into a complete downward spiral. After all the shock I fell into a deep depression. We got a divorce, I lost my house, I couldn't even function mentally at all so I lost my job, I lost almost all my friends (most were mutual friends, we basically grew up together after high school, and after something like this friendships become weird). I lost my hair, my eyes became depressed looking and now permanently baggy, and I have aged more in the past 5 years than I did the previous 15. Even after therapy, visiting psychiatrists, and trying to take meds (which I ended up rejecting after awhile), I still feel like I have a permanent dark cloud hanging over my head. I have a terribly difficult time meeting women and new friends as they can feel this cloud too I'm sure. I have also become incredibly cynical and it's really hard for me to trust anyone because the person I trusted with my life ended up ruining me, and I simply cannot go through that type of pain again.
There's a whole lot of TMI for ya! Sorry for the crazy soapbox, but sometimes it feels cathartic typing these things out (and I'll likely end up deleting this in an hour or two anyway).