Unfortunately, while she might not see his feelings toward her as love, Thanos does, and that’s enough to make his sacrifice of Gamora worthy of obtaining the Soul Stone.
Of all the twists and turns that characters take over the course of Avengers: Infinity War, Gamora’s may have been the most shocking.
She accompanies Thanos to the location of the Soul Stone, where the stone’s guardian, surprisingly, the Red Skull, reveals that to obtain the stone one must sacrifice something they love.
Gamora at first sees this as a victory, as she believes Thanos loves nothing.