I was actually thinking, given the focus of the film on Nebula (who absolutely deserved it, I loved getting to spend more time with her), it could have been Nebula and Rocket.... It could have made a ton of sense that she didn't seem to have told anyone else what needed to happen on Vormir then, too, if she was like "I need to do this myself". PLUS omg her finally admitting that she cares for the rest of the Guardians ;m;