Well im a girl so would call him or tell him in person i like him..... and see what he says
A person who enjoys making others suffer is often referred to as a sadist.
The same thing we call them when we describe people who like to abuse other people :A sadist, or just plain old animal abuser if you want to be specific.
A Cougar. The term "cougar" is only in reference to older women who go after younger men. Old men who like younger women are usually referred to as "sugar daddy" if they use money or gifts to attract girls. If an old man likes young boys, he is called a "pederast".
depends what kind of things she likes
Old
depins on what she likes to do ladies first
A geriatric You call them elderly or an elder.
A Senior Citizen?
Dobby
It depends on what he likes. Maybe some things that can represent him/
A person that is very old is commonly referred to as elderly or a senior citizen.