So, if you are feeling angry today, you are angry because someone did not meet your expectations. They let you down or disappointed you. It could be simply because they hurt you.
Even if it feels that you have the right to be angry. Remember that when you are angry, you are only punishing yourself, so let it go. Not only are you hurting yourself, but you could hurt others around you. Coping with the stress in this manner, is not healthy for you or anyone.