I am sorry to say that I am not heartened by your last post. Two things in particular concern me.

Physical attraction but not attracted to character: I do not see that as a basis for a satisfying long-term relationship.

She has to change for the relationship to work out: It is unwise to expect or hope that people will change in a fundamental way. If anything, they will get worse after a possible marriage or long term relationship starts--many try to be on their best behavior at the start of a relationship.

What is her thinking about trying to change?

It sounds like you might be a better fit for her as her therapist than as her lover/partner.