How do you deal with a drinking problem when the only person in your life telling you not to drink is the person that is the reason you drink?

My fiance who claims to live me is trying to get me to stop drinking. The one thing he doesn't realize is that he doesn't work during the winter, actively decides not to get a job and sit on his ass while I'm sending him money over Venmo to pay rent.

How do I stop drinking when the only person that "cares" about me is the only reason I drink?