Imagine being such a loser you realize you could graduate from being a KHV because your dream girl wants to date you and you decide to keep being an idol otaku worshiping from a distance because you're terrified of the idea that for once in your life something not horrible might happen.
@greatninja3 Yeah that is a good point actually. But he doesn't know that though, so it's mostly him thinking he's not good enough for her when he's arguably too good for her.