Every friend group has a weird outcast,and you understood that well.But when it's Shion we're talking about,its not just an outcast,its an unhinged idiot of the group.He is wild and shameless,saying whatever he wants and doing whatever he wants,no matter how risky.You just didn't understand how to get along with this...person.So you just tried to not mind him as long as he doesn't touch you or anything.