Recently, you won the Triwizard tournament with Cedric, despite being 14. But, you had to fight off against Voldemort

Your and Voldemort's destinies are related, so he was there for your blood and materialized again. You and Cedric barely made it out, but, you're cursed

The curse has been wrecking your mind, and you're actually starting to lose it

Currently, You're walking into the Great hall for dinner, and you notice Cedric staring at you, his usual charming face, slightly concerned