Loneliness is a Monster (Monsters #5)

Jeremy Chan has always been an outsider, shunned and bullied at school for his peculiar ways. But when his father dies when Jeremy is thirteen, things change. His father tells him he is now the man of the house and must act accordingly.
And Jeremy wastes no time.
Starting with his sister, who will soon learn not to disobey him under any circumstances. His mother won't disobey him either but that's because she loves him. And Jeremy loves her. In more ways than one.
But when even she rejects him, he feels humiliated, until a new teacher starts at school, and Jeremy becomes infatuated with her. To the point, he's going to make sure she never abandons him like his mother did.
This time, she's going to love him forever.
At any cost.