I think you are smart not to let you emotions control. That is very hard and take a lot of self control and I salute you. I think emotions are wonderful though. They can make us irrational and make us want to make poor decisions but they are a part of our souls and can teach us the secrets of ourselves if we meditate on what they are telling us and how they affect us and when. Emotions have been the most enlightening key for my own journey of self discovery and they are what I use to get to know another's soul as well. If an external action creates in emotion in you, it is very telling when you meditate on the "why" that emotion was created inside you. Would the same thing have happened in someone else? Would they have felt the same emotion? They are roadmaps of our souls and our scars.