I think you should stay with the guy you are with. You like him and he treats you well. That's worth a lot more than the "weak at the knees" feeling---which comes and goes like the weather. Why would you want to go back to a guy who can't put the bottle down? He's bad news. You know he's bad news or you wouldn't have written what you did. Stay with your current guy---he'll be the better choice in the long run.