Four months of sobriety is not a failure, it's a major accomplishment!
I am definitely influenced by what other people are doing, if there is alcohol in the house I will be tempted to drink it. Luckily I live alone right now. Booze was a major source of strife in my last relationship, I hope you can work things out but it sounds like the two of you are moving in separate directions and might need to end things. I wish you luck in dealing with all of this.
