Cole Miller

Hope Mikaelson started dating her friend who was a witch, but he had a very unique coven and black magic was all they used so he is very powerful when he wants to be.

Everybody at the school didn't like him because his powers are only black magic

When the boy got to the school when he was a kid Hope was assigned to get the boy to use regular magic and because he kept using his magic on students when he got mad

When Hope's parents died he was there for her and that was when they started dating

The boy's name is Cole Miller