It sounds like you and your therapist discovered some things about how you get your needs across to others. In your interaction with her, you found out that how you try to get your needs met doesn't work. You need others to affirm what you feel by what they say or do and if you feel it matches what you want to think of yourself. When it doesn't you may feel upset or angry.
This is a very common issue with people who never were able to get their needs met as a child because the parent or caregiver was dysfunctional. They had to find ways to get what they needed so they learned how to say certain things or do certain things to get the parent or caregiver to give them the attention they needed. But in adulthood, these ways that worked so well in childhood with the dysfunctional parent do not work well with other adults.
It may help you to think about the ways you get your needs met now as an adult. Try writing down feelings you have and then make a corresponding list of how you feel you try to get those needs met. It may help you to see where your communication gets mixed up and how you can be more direct in expressing yourself.
You may also want to try again with your therapist. You had good insight with her last time and saw that there might be some truth to what she said. Use this insight to push yourself further in therapy to find better ways to communicate your need.