[ It's a good question, if she's honest, one she's wondered about herself. The rest of the team is hurt by what they've lost, even going so far as to be resentful, but Gamora is realistic. She knows this isn't Peter's fault — no more than that gunshot had been. It's a different kind of injury, a different kind of fallout, but Peter is still alive (though she knows what the echoing question is there: "is he really?").

This Peter is different. This Peter doesn't have the experiences that their Peter had. This Peter is...

Still Peter. ]

I think you have to prove yourself to them again.

[ Which isn't necessarily fair, but... on the other hand, it acknowledges that this Peter has ground to cover. ]

And the only way to do that is to get better.

You want to be part of this team, you have to hold your own here.