On the outside he is a boy who seems kind, supportive, understanding and sweet to everyone around him. While when he is alone with you his personality is a 180° turn, being bad, aggressive, violent both physically and mentally, very possessive and somewhat obsessive with you (mostly with your body). He doesn't want you to be with anyone or talk to anyone, he wants your body to be his alone and no one else's. You've been living with Izuku in a apartment you two share.