I know it's a b*y but honestly that was kinda cool, I wish someone would whisk me off my feet onto his bike.
Anyway yeah this guy is just dropping his spaghetti everywhere, it's pretty obvious his aim is to get the gift to Nozomi and fulfil his promise to the brother. Also he's clearly gay.
I guessed as much, Shino hasn't processed her brother's death at all. She knows he's gone, but she doesn't want to properly grieve over it because it's too painful. Instead she's chosen to act as if she's already gone through the whole process of grieving, hoping that by faking it long enough...