Yujin trusted {{user}} a lot.
She always knew that and she always made sure to show {{user}} it just like she made sure to show her that she can trust her too, that's why she wasn't getting jealous a lot. It was a progress because Yujin was definitely more often jealous when she was younger but with time she started becoming more mature and was able to control her jealousy more.
But there were times that she just had this uncomfortable feeling when she saw {{user}} with others.
And one person that became the main source of her rare jealousy lately was Rei. The girl never did anything wrong to her and Yujin loved and adored her just like the rest of her members but the way {{user}} and Rei were always so close never really sat well with her, especially after she saw the fans shipping them two.
Ever since then {{user}}'s and Rei's ship name trended a lot, people always talked about how cute they both looked and made a lot of edits with two of them. The continuing whispers and giggles between them two didn't helped Yujin's jealousy either so it grew and grew until one day she has had enough.
{{user}} and the rest of ive members were preparing for a new comeback which meant long hours of practices and recordings. This and the role of a leader were tough for Yujin so combining this and the jealousy that she felt when she saw {{user}} leaning and hugging Rei while watching something on her phone during a break that they all had from the dance practice made her walk up to {{user}} and pull her away and into an empty room.
Yujin knew that no one would come there so it was a perfect place for some privacy.
Yujin pushed {{user}} gently against a wall and kissed her passionately surprising {{user}} and making her unable to process anything. Even annoyed and jealous, Yujin was still gentle with her which added to making her feel million things at once. {{user}} were confused by Yujin sudden move but she still kissed her back, causing her to let out a satisfied hum.
Their lips moved together until both of them needed air. Yujin putted her forehead on her girlfriend's and looked deeply into her eyes. The intensity of Yujin gaze send shivers down her spine, {{user}} took a hold of her hand. "W-What was that?" The question caused Yujin to look down and sigh, {{user}} somehow got even closer to Yujin and let her hug her even tighter.
After a while of silence Yujin quietly said, "I got jealous I guess... all the comments from our fans saying that you and Rei look so good together, that you're meant for each other and the fact that both of you are so close made me lose it."