double standard
My fiance is a toxic drunk. The last time he drank, he became verbally, emotionally and very nearly physically abusive toward me.
It was the second time this had happened in our eight-year relationship, so I left him.
I returned only when he promised to quit drinking and get therapy. He has already reneged on the therapy, and today when we went shopping, we walked by the beer aisle and I looked at one beer I wanted to try, but when he also started looking at brands of beer, I felt very upset.
Was this rational, or is this a double standard on my part?
double standardとは平たく言うとどのような意味でしょうか?よろしくお願いします