yeah bc he is suffering bc of it that's why he used black magic to forget her
their story is so sad TT Diana's past is terrible :c
SPOILER
Diana was a princess from a another kingdom but I think she was an illegitimate daughter. If I'm not wrong someone raped her before she met Claude, that's why runed away and became a dancer. Then she meets him as one when she visited Obelia
where did u read that? omg
I'm reading it in my language hahahah but probably that part is already translated in english. You can look for it in novel updates
I think he wanted to forget her mother.