Oh, Yes, Java, I also agree with the above posters. The fact that he does no believe himself to be an alcoholic is a dead give-away. he is still in denial to himself and is making a promise to you that he will not be able to keep. The alcoholic can make the most sincere pleas when they think we might leave---but when the compulsions and craving hits--they can't think about anything else but the drink. Addiction counseling without a committment and desire to work an intense program and do total abstainence gives almost no chance of success.
If he were serious--he would do anything possible to get sober whether you were there or not!!!! I say: Have him demonstrate by action--not words. One year of uninterrupted sobriety is the usual recommendation for demonstrating a committment toward sobriety.
It sounds like he is "quacking"---manipulating the situation while still indenial.
Now would be the time to listen to your head rather than your heart.
dandylion