From reading posts above, it seems like a common occurrence. That's not to down play how disappointing and painful it can be.

For me it was a turning point in reclaiming my self belief. We had been through a difficult time, both individually (not that he ever disclosed much) and together and had at least 2 ruptures in a short period of time, which were linked. As with all ruptures, it's the repairing of the relationship that matters most and can transform the rupture into a healing experience. At the time he underestimated how big the rupture was for me, despite me telling him. He was a bit evasive, deflective... not wanting to own it, like yours. The 2nd one was really unnecessary and careless on his part, he refused to own it. I lost any trust I had in him after that. Much later, maybe 4 months, I had a sudden realisation like something had clicked - I suddenly realised that my intuition had been right all along. I saw a different side to him, I saw a person that was flawed, arrogant and set in his ways. It helped me move on because I found more confidence to believe in myself and I realised the limitations of my therapist and therapy - it broke my idealisation. The last time I brought it up, he tried to move me onto a different subject... which I called him out on. Generally I feel a lot better though, in some ways it's balanced the relationship a bit more and I've been able to relax more into it. It isn't easy though and I'm certainly not saying that you should take a positive spin on it or not talk about it to him, you definitely should because he obviously needs reminding about his part in the repair... even if it is counter-transference, it's still HIM enacting it!