@RozuArison08 It mentioned that she was jealous of how close Yukawa was to her new co-worker. Jealousy is a sign of insecurity. Perhaps it is just my outsider view on romance from being an aromantic, but why would you feel jealousy over your romantic partner spending time with another person unless you somehow viewed that person as a threat to your relationship. This is taking place literally the day after she confessed her feelings to Yukawa and officially got into a relationship. I was merely expressing my opinion on how feeling jealous of your partner spending time with a coworker at work only a single day into your relationship sounds like an unhealthy mindset the could quickly cause enough trouble to break a relationship.