It doesn't matter what I think but only what you think Rainbow because she is your therapist and it's your therapy. It sounds like a really painful session. I can see how you would feel shAmed and my senses is that your t would deliberately shame you but somewhere in your communication with each other there was a misattunement and a contact rupture.
Sounds as though you both had different agendas and were singing off a different hymsheet. There is no blame here only learning. I really hear the little rainbow who craves her ts attention and gets jealous of her boyfriend. It sounds like a very young place rainbow like how we get jealous of our parents relationship with each other. I think this is where your t gets misattuned sometimes because she talks with the adult part who then gets shamed for having these feelings but let me assure you that these feelings are perfectly normal, we are all curious about our ts and their private lives and that's when it gets confusing. They give us information and then they withdraw, I see this happening with my own t. They get confused with their relationship with us, they realise they have overshared and that it will feed into our transference and they withdraw. We get confused, hurt and shamed. It's a horrible process but there is learning in it for you and your t. She is human and will make mistakes but you work well with her and she " the good enough therapist" who will make mistakes and who will do the wrong thing but I don't believe it's on purpose or conscious. Your t is in a new relationship and a part of her is like an excited schoolgirl wanting to tell everyone but then gets scared of losing him.