It is unnecessary. She does spare a fond smile at the sight of that flush. It never stops getting to her how easy it is to please him. His happiness in turn leads to her own. "He is more useful to us as a protector of Terra than a baker." Gamora concedes as her arm gently bumps his. She may not know why he's a big deal, but she can respect it. "Nebula will come to terms with leaving behind these pies with time." It helps to think of it that way. After meeting these people the odds of most of them surviving this are significantly higher. She's allowing for more optimism.