Should married women only hang with other married women?

I have a married friend (I'm single) and she seems to be somewhat jealous that I am free to be spontaneous. Her marriage is a mess. She's always crying because she's being abused. I can tell by her responses and facial/body expressions that she's resentful that I don't have to deal with any of that. She's constantly sending me articles about "The benefits of marriage" and yet she's on medication for depression due to her marriage. She's always saying negative things about me going out and staying out too late. We'll I'm single and grown and I can. She never had that attitude prior to being married. I'm ready to sever all ties with her. I believe that she should hang with other married women. The fact that I have no interest in marriage is causing a lot of conflict between the two of us. Besides her husband is rude and has a problem that I don't have a chain around my neck like she does. I guess I'm a bad influence because I don't tone down my behavior in the presence of a married woman. She changed her status. I didn't.