To chang or not to change ...that is the question!!

oh yes I was in a relationship for 9 years that I walked out on and I will never get over it, if I could go back and change one thing in my life it would be to go back to that time and make it work, instead of being a hot head and walking out, we now live pretty close to him and it kills me as I pass him on the street and he acts as if he don't even see me, he married a woman that the entire town said he done it for spite and he ha paid for it, but his pride won't let him admit we was both wrong.i have done also some stupid things in my life but never anything has impacked my life like this, we should all step back and take a long look at what we are doing or think before we speak, cause it hurts real bad when it comes back and hits you in the face