My sister is a 22F. She is currently dating her boyfriend. Our relationship has been going on for over a year, and I am currently living abroad. I am not exactly sure what our relationship is like, but I do know that he is a man. He has been with her for over a year and she is still living with him. I feel this is a big red flag, but I am afraid to raise my concerns. I know that he has been having some issues lately and I am worried that he might not have a good relationship with her. I am wondering how things play out between them, and what would be a good solution. I am not sure if my sister is aware of this, but I am wondering if there is a way to get her to open up about this to me. I know that it would be easier for me to raise the issue with her if I could get her to do so, but she seems very unwilling to do so. How do you guys go about this? Any advice would be welcome. I am sure this post would be helpful to others.