I saved my childhood sweetheart. Before the surgery, he said he had cured his depression and started a healthy relationship with me. But after he had the surgery, the day he was cured, which was also the turning point in my life, my 25th birthday, he became very indifferent, as if the me who appeared in his life suddenly disappeared. Because of me, he only lost that memory of me except for family and friends, so he became indifferent to me and ignored me. ——He suddenly didn't recognize me.