How Can I tell My Friend To Break UP With her bf?

My friend is in a soo called relationship with a bad guy. He flirts with alot of girls and he treats her bad. They have sex everyday when they see each other because he tells her to and she does it because she supposdly loves him. He treats me nicer then her. How should i tell her?How Can I tell My Friend To Break UP With her bf?
get proof. Take a vid on your cell fone (if u have one), then show it to her. If you just tell her she'll assume your jealous and get mad. If you dont have a fone, borrow someones fone or camera (wether its a pic or vid)How Can I tell My Friend To Break UP With her bf?
Well you have to be very delicate. You can be honest with her but don't be harsh. Don't forget to tell her that you're still going to be there for her regardless of her decision. I don't know if you guys are adults or not but if you are then she is entitled to make her own decisions.