Sociopaths have zero sense of identity, which is why they target individuals with strong beliefs, values and a moral compass, all of which sociopaths steal and wear as their own.
Keeping this in mind, it’s easy to see that when you fell in love with the sociopath, what you really fell in love with were your best qualities mirrored and reflected back at you.
So the love you thought you lost and wasted on the sociopath is still inside of you. You just need to redirect it back to yourself, the original and intended recipient.
Take back the love the sociopath stole and hoarded as his/her own. It was never meant for the sociopath in the first place. It was always meant for you.