I have a CPN who I see every 6 weeks. The CPN will already have a history from your g/f psych or whoever referred her. If your g/f doesn't want to talk about anything she doesn't have to. The CPN is there for support and to see how she is doing. Mine normally asks me questions about how I'm doing in general and lets me talk, she would also suggest ways of helping myself etc.
I remember worrying th first time but this will be a good resource for your g/f. The CPN will discuss any current issues that are stressing her or worrying her and will talk it through.
Here is a link to a thead here from a while ago:
http://www.recoveryourlife.com/forum...ad.php?t=11300
I hope it helps.
xx