Alcoholism Support Group
Alcoholism is the continued consumption of alcoholic beverages, even when it is negatively affecting your health, work, relationships and life. If you think alcohol is causing you to lose control, it's time to seek help. Our group is a safe place to vent, check in, get back up if you fall, and reach sobriety.
If your fiance is going to kill himself - there is little you can do about it. He has to want to quit drinking. It's not so much a betrayal of you, when he drinks, it is that he feels he has no choice.
If you think that you will be able to change him - and if you think that if he loves you - he will quit drinking - that is a fantasy. You are looking forward to a life of disappointment if you expect him to change. I would cancel the wedding unless and until he has decided to really stop drinking. You will know if he has truly made that decision by a marked change in his attitude = and if he is forever going to an AA meeting. :) Good luck.