I do know that my relationship with my wife improved enormously since I got sober. She didn't understand what I was going through. She knew I had a problem and supported me. She also kept her distance when I asked her to.
She quit drinking a half year before I did but she was not a "drinker". She got drunk one time and didn't like the hangover so she quit drinking for good.
There wasn't a day I wasn't legally drunk forever. Or very few days I wasn't. She put up with it.
Stay the course. Don't have any expectations of your partner. As long as he understands and supports you, things should turn out fine.