kirabauthor:

Parallels

Thanos “sacrificing” Gamora to “save” the universe, and her last words being, “This isn’t love,” vs. Wanda destroying Vision to save the universe, and his last words being “I love you.” 

Vision asked Wanda to do it. He kept encouraging and comforting her. She wouldn’t have done it if he hadn’t begged her to. But Thanos, with all his extremism, even though he must have loved Gamora in order for the Soul Stone to recognize that sacrifice, didn’t show real love, not the way Wanda did for Vision. 

Because Gamora was begging him not to do it while Vision was begging for it to be done.