When I was married having opposite sex friends usually turned out to be problematic unless it was within the firm boundaries of a work relationship. Since becoming single I have decided to not private message with men who are in a relationship or married, and it gives me peace of mind. I have enough drama in my life, thanks. I say this because invariably the men will start complaining about their partner or spouse, and it is very uncomfortable. Mostly I feel sorry for the women as I would not like a partner or spouse complaining about me behind my back. Keeping firmer boundaries is turning out to be the right thing to do for me.