I just want to clarify, this is not your regular "possessive male lead" behavior. This was most likely Seo An's anxiety reaching its peak with a mix of paranoia I think? Until now, he's never wanted to monopolize Woowon in this way. He was even the strongest supporter of "Woowon find your dream and spread your wings" movement.
What hurts me though is Woowon's behavior in this entirety. When Woowon found out about Seo An's overseas transfer, he was completely crushed but he didn't say anything. During the whole party thing, he was absolutely quiet as well. He even apologized to Seo An when he has nothing to apologize for. Line Seo An said, Woowon is too used to be selfless and give up early. He's hurting a lot but he never ever speaks up about it
What hurts me though is Woowon's behavior in this entirety. When Woowon found out about Seo An's overseas transfer, he was completely crushed but he didn't say anything. During the whole party thing, he was absolutely quiet as well. He even apologized to Seo An when he has nothing to apologize for. Line Seo An said, Woowon is too used to be selfless and give up early. He's hurting a lot but he never ever speaks up about it