try speaking to her again. basically, u need to find out what
are the areas in her life she's been missing out.. and also, spend
time sowing seeds into her life - meaning, spend ur time together
with her encouraging her and if possible, give her some
tuition??
i dun know how r u going to do it, but by spending ur time building
the frenship and sowing faith and encouragement will help ur fren
in a long run.
however, imho, she needs another understanding party such a teacher
or a pastor. such people may come in as a useful help for ur
fren.