Well, yes it can be fixed. The question is, do you want to fix it?

This is a huge trust issue in my way of thinking. I would say that if you do decide to go forward in your relationship I would get involved in the issue more. She might not be thrilled with that but she has already shown that she can't handle it. Maybe you should stand by her and walk her through it. Not in a way like your standing over her shoulder and demanding but more in a way like your holding her hand and leading her along. This way you can keep her from straying from the path.

My hope is that doing it that way will not only accomplish the goal but end up being a trust building and relationship building thing between you two.

Also, really sit down with her and explain how this is making you feel. You probably already have done this but it is amazing how often people let communication go by the side when things aren't looking up. Of course that has the effect of making things worse than they are. So, sit her down, have a talk with her, listen to her and then explain that you want to get involved in solving this problem. She might protest but let her know how important it is for you and that it might really be what you guys need.

It is a small step in the right direction but it is a step and that is the point. It might take a while to build full trust up but you can only take it a step at a time. This seems like a good place to start.

Of course that is all up to you and how much the relationship means to you. I am assuming it is important or else I don't think you would have asked for advice.

Good luck, I hope this helps.