I have homicidal thoughts about someone I love
What? Why do you have homicidal thoughts about anyone?
I just want to torture them and see the fear in their eyes when I approach with a knife.
That is kind of awful. It's not cool to want to hurt someone you supposedly love.
Don't you get it? I love them and I want them to respect my feelings.
It's never okay to want to harm other people, especially someone you care for. If you really feel this way, you should talk to a professional before you act on your feelings.