Ladies just looking for advice on what I might be able to do?

Not really into the strip clubs . But meet some friends at a club last week. One friend got a dance from a girl. They talked a little bit outside (I was their) She asked if we was married, and he said yes. Talked a little bit more and then she said that she was cold. So he put his arm around her. At first I thought she was working him for some money. But then I saw that it looked like she was uncomfortable with his arm around her. Knowing that he was married. She seemed like a nice woman. I would of just dismissed her has been just a nice woman who is working in a club to support her kids. But I saw that uncomfortable look on her face Any suggestions what I can do. I wouldn't mind going back to try to get to know her. I'm not looking for any fast solutions. Just one where I might be able to get to know her outside of the club. If something happens....Great!! or maybe I just might make a new friend, and that would be fine with me. Thanks in advance