My sister's boyfriend beat her up and had her sent to the hospital. No one wants to talk about it because he's family.

I'm at a loss for what to do. <br><br>I have an older sister and we have a brother and a little sister as well. Our brother isn't really close to anyone in the family. Ever since he was a kid, he was a creep and let's just say he had his own issues. For the sake of anonymity I won't share what they are. My parents hate him and are afraid of him too. He's not really part of the family anymore.<br><br>Our youngest sister is just 15. She's the baby girl and has always been spoiled and a brat. I won't say anymore because I hate her too.<br><br>Now, my sister's boyfriend. Everyone fancies himself an expert and pretends he's the best thing since sliced bread. My sister says he's abusive but I don't believe her. She's always making up drama and lies and making things worse on her own.<br><br>I was studying in a different city when my brother called me up. He said that our youngest sister and her boyfriend were trying to get my sister and her boyfriend into a relationship. He said my sister must be stopped.<br><br>When I came back home, my sister confronted me. She asked if I knew that our youngest sister was trying to ruin her relationship and I denied everything. Then my sister said she needed to show me something. She brought me to her room and opened her phone. The screen was all scratched up.<br><br>She told me that her boyfriend beat her up. I was shocked. She said he broke a bunch of her phone cases and even smashed the screen. I was stunned. She didn't want to press charges because she didn't want to ruin his life. She just wanted it to be between them. She also said she didn't want to tell anyone because he's family.<br><br>I was furious. I was so mad I couldn't even speak. My sister told me she wanted to end it and move on. She asked me to support her. I just couldn't. I couldn't support her. I couldn't even look at her. I didn't want her around. <br><br>She asked me why. I told her he wasn't a bad guy and I couldn't believe her lies. She was upset and asked me to listen to her side. She said she was in love with her boyfriend and she wanted to try. I told her she was a stupid bitch and she was going to regret this.<br><br>She left my room and I haven't seen her since. I haven't talked to her since then. I haven't talked to my parents either. I just want her to go away. I want her to be gone.