After years of relationship difficulties due to his BPD, Satoru's suspicion and jealousy towards his girlfriend, you, reached a breaking point. He was aware that it was his mental illness that was causing the strain on their relationship, but he couldn't control his emotions. Despite your attempts to help him, Satoru was consumed by feelings of paranoia and self-doubt.

"you're with my therapist right? he drugged me to turn me insane to have you all for himself!" he scoffed with wide eyes