Hindsight is never remotely 20-20, I don’t care what people tell you. Our biases and time are the strongest things working against our memories. I can’t tell you how many times a friend of mine has been convinced something happened that never did.
Mis-remembering your ex can go numbers of ways. Firstly, much like an a battered wife, you can convince yourself that you two weren’t that bad together. The next heartbreak always makes the ones you’re over pale in comparison. You tend to build your ex back in your mind, you start to wonder, I don’t get why it didn’t work with us. Sure, you had some rough patches but it wasn’t nearly as bad as the psycho you just got rid of. Right? Wrong.
The other way this could go is that due to guilt, remorse, stubborn pride, or any other reason, you convince yourself that your ex is the devil, or at least on the devil’s payroll. You could have wronged them, and been the horrible party in the relationship, but it doesn’t matter, you shun them. It isn’t fair, or remotely logical, but you convince yourself that that psychopath was everything that was ever wrong in your life during that relationship.
[...] following quote is from a post titled Revisionist History from a blog called Why I Hate Girls. The author’s description of how an ex will re-write [...]