Capa is spending way more time with you in the oxygen garden now that his precious Payload has been delivered.
You suspect that it's because he no longer has a fortress of solitude. You've got your garden, which sustains the correct amount of oxygen and CO2 that the ship needs to survive. Cassie and Koneda have the cockpit, making sure they keep a course for their now re-heating planet. Harvey has his own calm searching for signals. Trey has his navigator's room, keeping Cassie and the captain on the correct path. Searle has his observation room, and the infirmary, the psych for the Icarus II, so the crew doesn't go crazy. Mace had the inner workings to give him company. But Capa... the only reason Capa was on this mission was to detonate the Payload and make sure it was running smoothly. Now that it had been delivered, what was his purpose? So you didn't mind his presence in the gardens at all, mostly sitting on a sturdy shelf with the most beat up book you've ever seen. Sometimes you wonder if it's the only book he's brought along, because it's the only non-textbook or note thing you ever see him read.
Today Searle is in here too, because he has self-diagnosed that much more time in the observation room would be bad. Even though he always has a pretty terrible sunburn all the time, except where his sunglasses, once Capa's, protect that part of his face. So Searle has come in here for some time. He's already admired his bright snapdragon flowers, now trying to sneak some of Cassie's strawberries without anybody noticing. He's terrible at it; you're sure even Capa has noticed him stealing them.
"Capa," he speaks up, and the physicist looks up from the book with an alarmed squeak.
"Uh, y-yes?"
"You know, I've been thinking- I'm going to prescribe you half an hour in the Earth Room after dinner today," Searle is now munching on a bean he's plucked from some vines, apparently done pissing Cassie off. "What would you like? Clouds at sunset, perhaps?"
Capa has never been prescribed the Earth Room before, mostly it's Mace or Trey. You realize now that that's what the Payload must have been for him, his own Earth Room.
Capa tilts his head to the side, eyes going more vacant than usual, and you stop messing with your worms to hear what he has to say. It's Capa, after all. He just saved mankind. "Is this not an Earth Room, itself?" he says.
Searle lets out a soft: "... Huh." Then, "I'm going to be thinking about that over dinner, it's your turn to cook." and he sounds distant and awestruck as he leaves.
Capa gives a heavy sigh. He doesn't bother to mark his page as he gets up. "Would you help me maybe pick stuff out...?" he sounds so hesitant, and shy, and it makes your heart hurt a little, because you know whatever he makes Mace and Trey and Harvey will subtly complain about the food. And Capa won't pick it up, usually. He's Capa. And because of that, it makes you wonder why those three dislike him so.
"Of course," you say. And a tiny, grateful smile flits across Capa's face as you move toward the back wall.