I think Mansu enjoy being the attention of all these guys despite having together with Kuo Minglei because she never clearly set the boundary as friends with Si Chen, You Bin or Hua Heng.. Hence they all still pursuing her and keep challenging Minglei. Would she be as magnanimous if the situation reversed and Minglei kept his friendship with other women? The author is ridiculous and put the heroine too high in the pedestal as if there’s no other woman for all those men