Bad mother

Does going out for drinks with friends every once in awhile make you a bad mother? I put on facebook that I couldn't wait for the weekend so I could go out and have some "me" time. I was told by an old high school friend, who doesn't have kids, that I was neglecting my child by leaving her with a babysitter to go drink and even went as far as crying child abuse on me. Every parent I have ever known has taken time for themselves away from the kids. I work 40+ hours a week, cook dinner every night, read bed time stories and take trips to the park on the weekends. I am in no way abusing my child by taking time for myself, that's just stupid. What's your opinion on this?