This world was no one that Nebula would have chosen for them, it was too small - it lacked so much, it was cut off from the universe that they knew so well. But she would allow that it had given her the opportunity to not only find her sister again, but to build a bond in a way they might not have been able to had they not been here. Living with her like this, sharing a home with her and not having to share her with the larger collection of Guardians - it was something that Nebula was grateful to have.
Her sister was here and though they were both sick, she was alive and that mattered more than anything else. Which was perhaps part of what made the press of her so comforting, a small reminder of what they had even in the midst of the kind of aches they had for the moment.
"Yes," She agreed, "Severely punished." Because this was something that should never have happened in the first place, everyone who had made it happen deserved some kind of punishment. Not that they would, but it was another kind of comfort to plot with her sister like that.
"Rest." Nebula said, she had not truly been sick before so she only knew what she had seen - and she had seen Terrans resting, "Hydrate, some illnesses require medicine, I have heard that fresh air can be healthy."