She may, as a result of all this, have an inbuilt lack of trust in people's motives.
If you can hand-on-heart say and mean the following, you could say something like:
"All this is going on, but I want you to know that, come what may, I will always be on your side and support you."
Having been in a number of relationships I know that making such a declaration puts you on the vulnerable side. Decide whether you are big enough to live up to this.
Also note that there is a well-known effect whereby helping someone to grow may eventually mean that they outgrow the helper and move on. I met this myself in my very first serious relationship so I know. She had lots of family hangups and I tried to provide a 'safe' background. In the end she felt so good about herself that she went off with someone else!
You might be interested in the old movie "Educating Rita" that covers just this scenario.