Alcoholics and addicts often won't get help until they hit rock bottom. So long as you co-dependently shelter him from the consequences of his actions (i.e. like taking him back without setting boundaries about getting help with his addiction and reasonable behaviors) you are actually HELPING him stay addicted.
Now - that being said - you are not in charge of his addiction. He is. You don't have control over it, or over his behavior. The only thing you have control over is YOU.
If you don't have it already, get the book The Courage to Change. It's an Alanon book with little short readings - when you feel weak ust open up a page and read. It'll help.
Second - start to live your financial life now as if he's not coming back. he may or may not - but it's likely to take a while even if he does hit bottom and start to sober up. You need to financially protect yourself in the meantime. So I suggest the following:
1) If there is money in joint accounts, such as savings, consider taking half and putting it in your name alone. This will protect you from him cleaning out the accounts.
2) See an attorney for an initial consultation and find out what you would likely get in a divorce. I know you don't want to think that way but it may be necessary to start the process to protect yourself financially. Is he contributing to the house payments? Upkeep? paying on any credit card debts? Since you are unemployed, if you file right now you can get temporary spousal support most likely. Get copies of previous tax returns and bank statements ASAP, also any other evidence you may have of his true income (if he, like many construction guys, does work under the table).
If he's gonna come back, he'll come back regardless of whether you protect yourself financially or not. In fact, he may appreciate it if you protect half the assets from his drunken irresponsibility. So put your security first.
