Does sound like some effective and important change for you. Very cool

I have also experienced something similar in therapy, just in the opposite direction, or maybe more precisely, it's become much simpler compared with my default erratic and ambivalent attachment style (originally with strong avoidant streaks). When I was young, I used to have serious problems with attachments and commitments... avoiding them like the plague. Then in my mid-30's I had a long-term romantic relationship that became a serious addiction on both sides. I feel quite secure and balanced in the relationship with my therapist now, and I credit therapy for it, but not solely. It's been a very rewarding process and is making both my inner life and social interactions much simpler. Also reduced my generalized anxiety, I think.