Morbid.
lexicologist.
Racist
crazy cat person
Custy
a shoeaveor
A person that loves all things French might be called a Francophile.
Well it depends. If you're a man and you're obsessed with another man well it's called being gay. And if you're a girl and you're obsessed with men it's called love!
A person that hunts dinosaur bones is called a paleontologist.
A person who is obsessed with dates is called a "chronophile."
an obsessed person is somebody who only thinks of one thing and does it all the time
i think its death or the grim reaper
Hydromaniac