Dear loveandkisseszaphod,
You have dodged a pretty big bullet here. Alcoholism is a disease of selfishness. I was married to one for 20 years…it does not get better, it gets worse, until you are eventually dealing with jails, hospitals and financial hardships. He didn’t treat you well, including getting wasted at the event, the mattress and the breakup call.
He does not want to change, which guarantees his future is going to hold some pretty big lessons. Be glad you are not going to have to clean up the many messes. You deserve so much more!