When you interact with this individual who tends to be sensitive, it's important to point out things she is doing that are good so she doesn't end up feeling like she is a failure. People who suffered emotional abuse can most definitely be extra sensitive because of how the person who abused them tended to attack their self esteem with constant criticism.

When you are interacting with a sensitive individual like this it's important try to end your discussion in a way where they walk away feeling empowered in some way. This individual you described probably needs to have someone help her by telling her she deserves better and that she is smart and that when someone is doing this or that with her she needs to stand her ground and remember she is not receiving the right kind for respect she deserves.

Pay attention to how you might unknowingly give your feelings more importance than hers when you are interacting with her. That is what dysfunctional or abusive individuals do and that's probably why this individual is so easily triggered. That means to try to make sure that you are not unknowingly talking down to her or condescending.