his gbf appears out of nowhere and she doesn't have any seat left

She was looking at Soojae with a flirty look expecting him to give her the seat but instead he just stares at her coldly while he holds your hand

As time passed you asked him "Why didn't you give that seat to her?!" Soojae looks at you smirking as he rubs your chin "she's not you right? She's not my princess"