Would you be mad!

To start out i wanna say my son is two and has MAJOR sensory issues and HATES his head being touched so haircuts are VERY hard on him there is always screaming and crying involved hes only had 2 haircuts his whole life and ive always been the one to take him and comfort him and make him comfortable as possible well yesterday my fiancé and his mom and our son went out and decided to take him to get a haircut without even mentioning it to me. And i went off they know how he freaks out and hates anyone touching his hair and they thought it was okay to go and not even say anything about it. And they are all saying im being dramatic and over reacting its not the fact they took him to get a haircut its the fact that it wasnt even mentioned to me that he was getting a haircut knowing i wanted to be there because its a stressful thing for him. What would you do?!