I have a lot of problems with this dude.
1. Continually imposes on her, while knowing her work is life-or-death, highlighting his nonflippant attitude of her boundaries
2. Disobeys orders to wait and becomes happy-go-lucky, highlighting his apparent nonchalance even in the place he’s injured himself and seen many corpses, displaying his disregard for his AND her safety.
3. Steals her food without waiting for a reply, after she saved his life from HIS fatal mistake
4. Continues to impose on her job with his personal interests
These incidents are not simply due to lack of experience. He is: Arrogant, self-centered, and careless of bringing himself or others into danger. He does not truly respect her profession or boundaries, as he steals her food and pushes himself onto her, and he is unable to critically evaluate the situation or respond effectively, even after making mistakes.
These are apart from the myriad of mistakes related to inexperience, like having obviously NO backup plan for if things went wrong in the dungeon, being improperly prepared, and getting lost. These are excusable because he’s new. But the four reasons listed above are inherent to his character, and are pretty bad.