What did your happy ending look like? Were you able to have a relationship with your parent(s) again? Did you try? Or did you just cut them off and you've never been happier?
I'm assuming that you're happy in your current state regarding your relationship with them.
Please include how long your current "happy state" has been going on for (just so we don't have people saying "yeah, I cut them off, happiest week I've ever had so far"; I'm looking for long-terms fixes).