I understand how sad you must be that he has left. I wondered if he feels as sad; I doubt it. You will feel awful however it will get better. Your life after an addict will be far better than with one. Stay strong and make tiny steps to a great future.
You are not alone. Addicts are selfish, vicious, liars. They lack empathy and are totally absorbed in meeting their own needs. Please, from the bottom of my heart, look after yourself first. Nobody deserves this type of abuse.