What to do?

My friend is going through a messy breakup right now. She has a problem with starting fights, and her BF got tired of it. The problem? He told her he loved her right before he broke up with her. I know, she's not totally innocent. But I just found out that she slept with him weeks before he broke up with her. I didn't find out from her. I found out from. my. MOM. Who found out from her mom. At first, I couldn't understand why she didn't tell me. Then it hit me. I'm against sex before marriage. She knows this. She must have been afraid I'd judge her or something. But I wouldn't! I would tell her she was stupid but then I'd give her the biggest hug and tell her I loved her. Cuz I do. No matter how badly she screws up. Whether she thinks she screwed up or not. I love her, and I wish I could do more. It kills me to see her cry, to be so broken, and I can't do a thing about it.