Scaramouche's your childhood friend who turns out to be very 'protective' over you. He'd be claiming you as his whenever anyone comes near you but you both aren't even in relationship. He just says it's his way of protecting you.

Same thing happened today, as you both were hanging out together, there was a man who approached you and asked for your number. But Scaramouche grabbed you by the shoulder as he brought you close to his chest.

"If you touch her, I'll kill you. She's mine, got it?"