User blog comment:B214/Question and Answers 6/@comment-185.112.105.215-20161022104148/@comment-9595671-20161025000250

I was talking about the anime wiht the Loki curse, the curse was placed on Loki in the anime, the thing with Raynare was described as a "curse", but was more likely an subconscious defense mechanism made from Issei's emotions in response to many of Raynare's words before she died.

That's what made him fear to face the girls, that defense mechanism made it so he couldn't believe the girls could like him in any manner and anything he could do would make the girls him the same responses or reactions that Raynare gave to him.