Betrayal, lies, substances and ?

Entirely betrayed and still there are moments when it hurts as if 'new'. Had a love who had a family with another. The woman was led to believe lies of me, as I was of her...and being innocent deeply bothers me. The new gf and I do not communicate, will not. It is pointless to feel bothered by it, as I can do nothing about it....yet how does one actually move on from more than just a relationship, a bond, a world, a person? Is it possible to move on from being ultimately betrayed by a best friend who too was more for many many years?