Why him

Amber and Krystal has been dating for over 5 years now, each time they have dates and stuff. Krystal would always talk about Kai this, Kai that. Each time when the name " kai" comes out of Krystal's mouth it makes Amber feels like Krystal's dating Kai instead of her. Amber tried to be the understanding "boyfriend" that she has been throughout the 5 years since Kai's Krystal best friend ever since little. Kai knows Krystal more than Amber does. You may have this thinking of why doesn't Amber change a topic and talk about something that Kai's not part of? well she did and she did everytime but it never works! The second Amber say something else that Kai's not in, Krystal would just change it back and talk about Kai this and that all over again. When the 3 of them goes out on a friendly date, Amber was like the third-wheel. Kai would act as if he was Krystal's boyfriend and Krystal would just be herself and do what couples do. While Amber just walk behind them and all she could do was look at Kai and Krystal up front