I can't imagine what kind of upbringing you'd have to have in order to first think of this instead of the amount of work that fan put into a drawing. She clearly meant something to him at some point in his life, probably a hard one. To make a sketch and be proud of it only for your fave to behave like an insecure fourth grader...
I hope the dude finds an artist that's not so stuck up & shows appreciation for their fan's efforts.