It's not like he couldn't take her on and stand up for himself, but he doesn't feel like starting up trouble... he'll just quietly step into the locker and be on his merry way. Plus she's, like, what, 12? He can't beat up a kid!
Every time she tries to steal their snacks they just make a baby holder out of tentacles and SHE'S 121 YEARS OLD C'MON!!! That's just rude!!! She deserves a more dignified method of capture!!! FIGHT ME!!!!!!
She doesn't seem to get that there's a huge difference between being part-dog and being a puppy... she can't really be that naive, right?
Other than that, though, she's kinda fun to be around. Could be, like, his apprentice or something.
Her precious sister who she'll do anything to protect! Hiema's always been the only one who's been there for her... she's the only one who hasn't abandoned her and the only one who's ever nice to her and compliments her! Hiema is the best person in the world, so the least Aesie can do is everything ever!
Her sister, and the only person in the world who matters to Hiema. She manipulates her, sure, but she really does care about Aesie... Aesie's always been there to protect her and is always so selfless and caring...
It's not like Hiema's jealous of her or anything like that, though! She's, like, way stronger and cooler! So, whatever...
He tried to convince her and Hiemalis that they'd be better off just staying in the labyrinth, but they didn't listen. If they want to get their hopes up, then fine. He'll be waiting to say "I told you so."