Does this story even have a chasing/regret arc???? Coz like wtf I need me atleast half

From spoiler I've read, Wooyeon only change after In Seob's life in danger. He let go of In Seob, during that time he feel troubled to be separated from In Seob. He just change his behavior after that to be more understanding to In Seob. So No. There's no chasing arc as it is him to let go of In Seob and easily come back together after that.