It sounds to me like she is acknowledging and confirming that you don't want to leave your marriage. Then she is going and exploring the 'what if' you did want to leave. What might be the good things about that, what might you want for yourself if you were on your own, how would your needs get met then, what would your life look like, etc. as a way of exploring and discovering what you want now, what is important to you now, and what could help make your marriage more like you want it to be.
Sometimes our desires are points to reach, but we need clarification of where we are and how to get to those points.