Build Something, Anything
When someone you love wrongs you, the anger can fester and that is not good for anyone's health. Sometimes creating something new is a wonderful outlet. This helps you rid yourself of your anger by giving it a name. This type of outlet has created many great works of art. Build a birdhouse or anything made out of wood. Pounding nails into the wood will release some of your anger and aggression.
Get down on your hands and knees and take your aggression and anger out on your floors. Look for a cleaning chore you have been neglecting and give it the scrubbing of a lifetime. Not only will this help release your anger, you'll get something done. Shower grout, shower doors, and kitchen floors are great targets for vigorous scrubbings.
Write It Down
Grab some paper and a pen and write it out. Express your feelings in writing and watch your anger slip away. Write down why you are angry, who made you angry, and what you want to do about it. Just write whatever comes out. It may not be an answer to your problem, but you will feel better with this sort of release. This also allows you to give your anger and aggression a voice, and may help you understand it on a clearer level.
Find a way to relax when anger and aggression get the best of you. Use deep breathing and yoga, or just close your eyes and picture a place you find to be calm and relaxing. No matter what you choose to do, make sure you are taking deep, cleansing breaths. This helps diffuse anger and clears you mind.
The way you choose to deal with your anger doesn't matter. What matters is that you do it. Stress caused by anger can age you, make you tired and lethargic, and will stay with you indefinitely if you don't deal with it. You don't want to carry piles of anger around with you. If you do, it will release itself eventually and most likely this will be in a way you will regret