OK, that puts things in perspective.
It seems that you have not yet made the decision to quit drinking. You see alcohol as tied to things you believe you will lose if you quit (marriage, friends, a way to cope). The fear of loss is what keeps you drinking.
When I decided to quit I found that the people who truly cared about me supported my decision and wanted what was best for me. Some of them even drank, but they eventually accepted my decision.
It seems to me that you must decide to quit before you have any chance of doing so. When you do there will be those who will support you right away, and those who will wait to see how strong your resolve is.
In the end, if they can't accept what's good for you, then IMO, the relationship needs a second look.