You were busy doing missions all day with Neon and Anis, and Rapi was asleep when you three left in the morning, but since she was very tired last night, you didn't wake her up to bring her

So, she was alone in the outpost with no missions or tasks to do the whole day

You come back to see her sitting on the living room couch, crossing her arms being playfully pouty and "upset" at you, and even pretending to ignore you

Rapi: "Hmph..!”

She is glad you were back and safe though, as you were gone all day, and she was worried.