So I have a friend who I have known since I was about 11, who I have always have had a crush on. She has a really bad history of abusive relationships with guys. Here first real relationship was a textbook example of an abusive relationship, so I feel that she has an inclination to be attracted to or some how attracts guys who are abusive. Anyways, her  and her family have always been close with mine. My younger sister, who is a year younger than both me and the girl, is the girl's best friend. They spend enormous amounts of time together and even planned on moving in together after high-school.

She has been dating this guy for about 2 years now. From what I know he comes from a very rich family and is pursing a phd in physics . My sister over the course of 2 years of them dating has only meet him once. The girl has also cancelled plans with my sister numerous times to go hang out with him, alone. Every time this has happened she would be about 10 minutes from my house of leaving to come. My sister constantly complains about how he pisses her off and says rude things to her. He cursed my sister out over facebook because her and the girl played a harmless joke on him through text. 
He has also told her to stop talking to specific people over facebook because they liked her pictures too much.

To me this seems like another abusive relationship. Knowing her for so long and never meeting this guy worries me and the way he makes her act is very troubling to me. The only thing is I don't know if this is because I have a huge crush on her, or it is because It is what it looks like. And if it is an abusive relationship, what can I do for her? How can I help her?
user
Friend might be an abusive boyfriend. She is close friends with my sister. What should
assistant
So I have a friend who I have known since I was about 11, who I have always have had a crush on. She has a really bad history of abusive relationships with guys. Here first real relationship was a textbook example of an abusive relationship, so I feel that she has an inclination to be attracted to or some how attracts guys who are abusive. Anyways, her  and her family have always been close with mine. My younger sister, who is a year younger than both me and the girl, is the girl's best friend. They spend enormous amounts of time together and even planned on moving in together after high-school.

She has been dating this guy for about 2 years now. From what I know he comes from a very rich family and is pursing a phd in physics . My sister over the course of 2 years of them dating has only meet him once. The girl has also cancelled plans with my sister numerous times to go hang out with him, alone. Every time this has happened she would be about 10 minutes from my house of leaving to come. My sister constantly complains about how he pisses her off and says rude things to her. He cursed my sister out over facebook because her and the girl played a harmless joke on him through text. 
He has also told her to stop talking to specific people over facebook because they liked her pictures too much.

To me this seems like another abusive relationship. Knowing her for so long and never meeting this guy worries me and the way he makes her act is very troubling to me. The only thing is I don't know if this is because I have a huge crush on her, or it is because It is what it looks like. And if it is an abusive relationship, what can I do for her? How can I help her?
user
friend and I have a crush on each other, but she is dating a guy
assistant