Sorry to hear you felt like your experience was minimised. Sometimes therapists can discourage disclosure of traumatic experiences if it seems the feelings triggered could not be contained, such as time running out. Trauma needs time to be worked through. Another reason may be that there are therapists who choose not to actively encourage or discourage any disclosure, on the principle that it is 100% the client's decision, not to be influenced one way or the other. I personally don't know what to think about her comment at the end, but I am glad that she could have a session with you sooner and that she seems to realize it's important to you. If you trust this therapist, perhaps you could bring up your doubts about her response next time, too. I hope it works out between the two of you - working through trauma is difficult enough even without misunderstandings with your therapist.