[Vautrin]

You may not be an expert on diagnosing people, but you did not suspect anything was wrong with Andrea either. That is a good sign.

From what you describe it seems that a solid friendship can be formed now.

Relationship might be possible too, but as for a time-table, it is very hard to make a good predicition - and it is true that the less inhibited part can be very debilitating for a relationship. In severe cases the loss of inhibition might lead to a lot of dangerous addictions, which can make relationships almost impossible.
However from what you describe, chances are good that this will not be the biggest issue. Much will depend on the severity, and how she is going to cope.

Tough call to make.