Not really about me but need some advice. I found out my brother has been cheating on his girlfriend of over a year. He has our grandmas ring to propose to her. The other girl messaged me last night cause she was worried about him. They'd been together since June. He had spoken with her about getting an engagement ring for her. They broke up after we talked and then I told her about his main girl. They're both so sweet. I told my mom and showed her some pictures the other girl had sent me. Obviously his main girl will be told of the situation. I think my mom is going to talk to him and have him tell her. In the meantime, I don't know what to do because both girls keep messaging me. The one is heartbroken (she was gonna give him a key to her apartment for Christmas) and the other one is oblivious. Do I talk to my brother? Geez I want to slap that boy. He's bipolar and I know he was off his meds when it all started but ugh. I guess I'm venting more than anything. Sorry.