Cheater, Cheater, Pumpkin Eater

What's up with the whole cheater cheater pumpkin eater thing anyway? How is that an insult and how does it make any sense? Cheaters should eat something worse than pumpkins! Maybe instead of eating, it should be something like cheater cheater bullshit feeder... that sounds more like an insult.
Anyway when I was younger I never realized how prevalent cheating was. A little over a year ago, I used to work in this different office and I met this guy. I'll call him "Joe". He was a pretty good looking guy and had been married for a while. Well he was always flirting with me, but I always figured it was harmless and he didn't REALLY mean anything by it.
I also worked with this woman and I could always tell there was something there about me that she didn't like. I couldn't think of any reason for her to dislike me. I was always nice to her and we worked together and even had a couple things in common.
Well one day Joe filled me in on why she didn't like me. Apparently he had said something about finding me attractive and it made her feel very jealous. It didn't make much sense to me at the time because she was married and had a small child. I figured it was mostly joke with a little bit of truth to it.
I continued to talk to Joe and sometimes we would have lunch together. Never alone, always in a group of friends, but we became closer and would email each other during the day about silly little things. Sometimes we even played team sports after work.
A couple of times while we were chatting, he would joke and take his wedding band off. And I thought it was exactly that, a joke. I was pretty naive, but at the same time I wasn't doing anything wrong so I never really thought much of any of it.
I realized that this other woman that disliked me so much never really spoke to Joe anymore. And I had heard that they had been pretty good friends before I was ever around. Finally he started crossing the line. He never tried anything physically, but verbally it was too much. It was a different situation for me, because I did enjoy attention from him... but he was a married man. At that point, some people would say "who cares? it's not your problem. you don't know his wife" and others would say "that's very wrong because you know that he's married. stay away".
And then came one day when he told me about his affair with this other woman who barely spoke to him anymore. It made me feel bad for his wife. Joe also told me that his wife even asked him about this other woman and he denied it. He lied right to her face, to his wife, to this woman he was spending the rest of his life with. He made her feel like she was paranoid and silly for asking such a thing. That was the most horrible part. I was shocked and it made me feel sick.
Anyway to make a long story short, nothing ever happened between us, much to his dismay. In retrospect, I'm so happy that I was smart enough about it. And now I've found the person I want to spend the rest of my life with and I would never let anything or anyone get in way.