Avoidants and therapy - does it really work ?

Reconnected with my avoidant ex a couple of days ago and found out that he started going to therapy. I should be happy for him but somehow I feel even more hurt about it than I should.

He was vehemently against therapy the 3 years we were together, claiming that he didn't need a stranger judging him when they didn't know him at all.

I've felt so helpless during our relationship because trying to give him space, or gently communicating my needs etc just never went through to him. I don't know why but him going to therapy AFTER our break up feels like such a slap in the face.

I was hoping that we'd be in a better space to talk about what went wrong. But all he talked about was how he's getting better and he still didn't acknowledge the hurt he caused me. His attitude was pretty much "lol I tried".

Can avoidants go to therapy and still not recognise/deny what they did ?

As a disclaimer: this is not me denying that I also have things to work on. I recognised and acknowledged a lot of it while I was with him and tried to work on/not get triggered. But on his end it was just endless denial.