Is there other's out there? RAD.

In retrospect, my "daughter," was clinically diagnosed with "RAD" (Reactive Attachment Disorder) "Ininhibited." This was at age 17. Never got treatment, and is the reason for her leaving my son and their two children, and immediately immersing herself into a polly amorous relationship. I know this to be true. We ignored this diagnosis because we thought just giving her love and trust would be enough. It was not. She continues to ignore her condition and chooses to remain in present relationship rather than reestablish her relationship with her children, husband, or us, (her mom and dad.) She wants her cake and eat it too. But that's not reality.
Anyone else here with personal experience in such a disorder?