I wish but in the beginning it said Woon-Ryong had tons of boyfriends that looked like Pung-Ho and it seemed like Pung-Ho knows this and hates Woon-Ryong for being a slut/playboy ┑( ̄Д  ̄)┍.
No, PungHo was his first and then something happened cause blonde guy left and start to have lots of lovers ALL similar to PungHo to forget about him but was one impossible and two just make things worse between them
That Pung-Ho is the only person he’s ever been with?