Disappointed and I Don't Know What to Do

Today couldn't get any worse. Well, technically I guess it could, but I don't want it to. How do you tell someone that you are disappointed in them, yet not sound like a complete mother? Where is Sister Vicki when I need her? I have a friend that has been hurt so many times by her boyfriend and yet she keeps letting him into her life. I know that I should just let her make her own  mistakes and learn from them, but me being a friend it pains me to see her like this. I am trying to stay strong for her, but sooner or later I am going to burst. This guy is getting under my skin, but I don't know what to tell him. I just hope that I can be strong for her, and be there for her when she needs me. That is all I can do right? On a lighter note, college is going quite well. I keep telling myself that I need to get better at blogging, but it hasn't happened yet (work in progress).