I agree with those who see that the problem here is that the daughter was rude, and didn't communicate her plans to her mother or adequately thank her - not that the going out drinking with a friend was itself bad.

I don't think it's healthy to believe that once you get married/have kids you have to be unrecognisable and give up those things that make you happy. And I don't mean just unhealthy to the mom - but to the kids too. I speak from experience as my mom had few friends and never went out and was a teetotaller as well. She had a lot of other problems too but maybe they wouldn't have been so bad had she had a supportive friend or two with whom she could be herself, not just a wife and mother when that was all she was immersed in all day. In retrospect I think it would have done my mom some good to go out with friends and hey maybe even get plastered, with or without her husband. It was a long time before I realised that my family was the exception, and most parents had friends with whom they went out and got silly sometimes.