Mental Health Discussion Boards

I may be being overly cautious, but my sister has been acting different lately. Really withdrawn and quiet. Shes in a new relationship and im worried that he's not treating her right or that maybe shes being mistreated im not sure or im being overly protective. but i dont know how to bring it up to her cause shes very shy about her personal life since we have gotten older. any advice would be very helpful i just want to make sure shes doing okay

I have so many issues with my family