I think it is reasonable for you to support your boyfriend in his recovery journey by not having alcohol in the house if you live together. Its not stopping you drink, you can go out with friends and drink but being in a relationship with an alcoholic (whether active or recovery) is different to other people. There are and always will be areas that you need to be more sensitive to. For me, when I was with my ex, I was going to take that one extra step and go teetotal with him to show my full support - but that was my personal choice.