
He's 10, i mean that’s a bit overly dependent on a 10 year olds opinion, if i were getting complimented everyday by a 10 year old i’d assume the kid admired me and or was getting brownie points, taking it seriously really shows how insecure that guy is

While it's true that he is insecure about his acting, I understand why he values Seojun's opinion... After all, Seojun may be only 10 years old but his achievements are goals that not a lot of actors have achieved.
Add to that, the fact that Seojun is using a skill. If I remember correctly(from the novel), Dohun was considered by the skill to be a part of Seojun's pride(a group of lion).
But I do agree that it is an unhealthy dependence on another person's opinion even without considering the fantasy concept of Seojun's abilities.
This isn't slow burn it's literally a smolder