To an extent, I would feel honored. While none of my characters are meant to be attractive, knowing they're attractive and have enough appeal to form such an interest in them is nice. People finding humanity in your characters and treat your character like a person to some extent is something great
However, I would feel less appreciative is the comment of simping is disturbing or inappropriate, the person is lusting on a kid, and it is being excessive that they only focus on the look of the character—not their personality or story. The latter is pretty important for me, as sometimes I feel relieved that my characters aren't eye candies that people will more likely to like them because of who they are.
