I definitely understand black hairs paranoia, even a bit of the blue hair. it’s reaaally hard for me to feel more sympathetic towards blue hair Tho. I don’t blame blue hail for keeping it a secret from mc that he was meeting up with his ex (especially with his mc is very possessive and gets jealous easily) but it’s only cause more misunderstandings, I sure as hell wouldn’t like seeing my s/o meeting up with their ex w/o telling me. It just looks like blue hair was looking for a rebound and doesn’t feel the same way as mc does. And black hair really needs to get some therapy because codependency can really drive people away.