The only thing that I can think of is I found out she lied to me. I know so much about her that unless she has lied about things I have an idea of basic belief system. Most is either in alignment to what I believe or we at least respect about each other. We have worked hard to build trust in our relationship because I have a hard time trusting people. To find out I couldn't trust her either would be then end of our professional relationship to the point I could no longer work with her.