beta
Seojin was acting like they were just casuals and not in something serious for now or for the future AND now he hears about him not being that serious for yoonhe from yuri and he flips it. He is probably gonna blame yoonhe as well. He wants yoonhe to be his but he doesnt even want him when yoonhe makes it clear that there is only seojin.
He always runs away and then someone tells him that he is not all that, he starts getting all mad.