cool4
She has to talk to him. Communication is key. I've never been in Relationships but I give Advice based off of what I see from other people. If she doesn't talk it'll never work out. If she doesn't want to, be a mediator and get them together. (If you do this make sure it's a fairly private place like a house or what not) And just get them to Discuss what's going on. How open to the school they want their relationship to be, and see it go from there.
I completely agree with this - your friend needs to talk to this guy. Maybe hes backing out of the relationship because hes scared, or maybe he wanted whats called a 'summer fling.'
Don't make him feel cornered, because that makes guys withdraw or lash out. Give him space, but don't completely ignore him either. Maybe you can befriend him if hes nice and talk to him.
Be nice to him, guys love a nice girl. [;
Best of luck, hope I helped ~