I never thought I’d hate someone

This is the first time in my life that I hate i hate someone. Let’s call her kim. Kim has made my life a living hell. She has been here two weeks.  She has lived with us before but she don’t change at all. Like this morning she started a fight with the landlord over nothing. She could have said okay but no. I have never met someone so heartless i n my entire life. I hate Kim so much to the point of she died i  wouldn’t care. She has effected my mood and has made me vary depressed…..