Bum was/is Woo's stalker, so that's the reason he was writing so much. Woo probably forgot that detail, and Bae was probably confused on how Bum knows so much information on Woo because he thought them dating was fake.
Bum was/is Woo's stalker, so that's the reason he was writing so much. Woo probably forgot that detail, and Bae was probably confused on how Bum knows so much information on Woo because he thought them dating was fake.