My Killer Neighbor

What began as a terrifying situation ended up being a fantastic start at home with myself (my first time living by myself!), but on day one of school... I'm outside my apartment when I run into a gangsta-type guy who thought I had been following him. That almost got me killed (really) and after I almost died, I prayed daily that I would never see him again! But now I live in the same apartment complex and the same apartment as the gangsta, Kim Jun, that no longer looks like a gangsta but I don't know if he even remembers meeting me because he is so nice to me now and always comes to hang out with me after school... Help! I'm not going to have a heart attack.