Mine would be my failed relationship with my ex-fiance. Everything I have ever set my mind to I have been successful with. Logic and reason has always lead me down the right path, but when it comes to matters of the heart, things have to be approached much more delicately and differently.
I learned that women are not men. Seems very obvious, but its essential and what a fool I was. They look at and react to things totally different than men and I have to understand that, if a relationship is to be successful. I learned not to take a relationship for granted and that complacency is death, and that relationships take continual time and effort. There is no finish line and trophy. And most importantly, I learned that healthy communication is the foundation of a relationship that can go the distance. And maybe most importantly, I learned sometimes you need to know when to let go.
Despite all of that, I probably would never have a successful next relationship, if it wasn't for the lessons learned from this failure.
So what is your greatest failure and if you learned a lesson from it, what was it?