It's so similar to something that Adam might say that Gamora finds her hands tightening into fists and anger creeping into her voice. It's not how she'd want to spend her last conversation with Blue, but she can't help it.

"Then find something else." It's what she does, to keep going. To find a new purpose no matter how shallow it may to be to go from one day to the next. "I've had my share of dealing with self-sacrificing idiots."

But she can accept Quill, Rider, and Adam's sacrifices because they meant something. They saved the universe however pointless she might have thought their deaths were. This - this isn't that. It's giving up.