You will never know for sure why she stood you up. So let that go.

It's really good to recognize something in yourself that you want to change, regardless of how you come about recognizing it.

I am also like you. I have a knee-jerk emotional reaction to things and it has caused me a lot of problems. However....I can't change my emotional reactions. It's an impossible things to do. What I have learned to do is wait. I have (with only some success, mind you...) trained myself to wait 24 hours in an emotional situation that requires consideration and thought. I tell myself 24 hours, but even an hour makes SUCH a difference in my reaction.

I am human. I am not perfect. I have learned to accept the way I am while still making an effort to be a better person.

Just an opinion from someone who "thinks" with her heart :-/