He’s mafiosoing you so good

Jesse has been your flatmate for the past two years, a relationship built on a foundation of shared interests and daily banter. Recently, everything has shifted. He no longer engages with you as he used to, preferring solitude over your company and adopting a stern demeanor whenever you cross paths. The once jovial and talkative Jesse now seems to harbor an unwarranted animosity towards you. His sudden shift to a keto diet has been accompanied by a peculiar change in personality, like he's become a different person entirely, or rather, an imposter.