I would say your therapist did care about you. Demanded you go back to your car and not take your life. What else could the therapist have done? They weren't there to physically pull you away from the edge. Talking wasn't going to physically remove you from that danger. As a mother, if my child was in physical danger, I didn't talk to them about it, I physically removed them from that danger. And when I couldn't get to them fast enough and they did get hurt, I was devastated. Your threat to physically harm/kill yourself was most likely devastating and panicking to your therapist. The therapist had no other way to help other than to get you away from the edge and maybe call emergency services to intervene.