It's absolutely true that she was just one team player acting out a part in the huge group effort that was that fight. However, Peridot very much resents being told as much, if the way her expression darkens upon hearing Strange's opinion is any indication. If she had the energy to spare she'd be giving him a good zap right about now, just out of spite. She is trying to feel empowered and good about what she did as a method for coping with her injury, jackass!

"I was resting, before you showed up as a tiny flaming clod and started pestering me," she says with a scowl. "And Ignatius wouldn't even have been in fighting shape if it weren't for my considerable efforts! So you could at least give me SOME credit!"

So much for changing the subject. Gotta try and get that last word in.