nebula/anakin.
He was exactly the sort of being who should never have had that power. Did he truly believe he was doing the right thing? Or just enjoy wielding that level of control over the entire universe?
I'm not sure I understand how this "Time Heist" worked but I can relate to how unsettling it would be to connect with your own past mind. I can only imagine having your father be able to access that himself.
So this Gamora of the past lives on while the Gamora you had bonded with was sacrificed by your father.