Hello again! saw your update in the book but I'll share my request here to avoid spoiling the readers. Cop Daichi who's dating detective reader, she has a personal mission of uncovering the disappearance of her old hs boyfriend. But Daichi tells her to give it up as all leads are dead ends and that she should just move on from him already. She just wanted closure and she honestly thought that the empathic justice loving Daichi would understand her journey, so why was he so insistent she stop?
Then she finally deduced that he wasn't discouraging her out of jealousy, it's because he's the culprit!