It’s a boy! (The real deal)!
Huifan: Ding Junhui (Xiaohui) and Fan Hailan (Xiaofan)
Hengfan: Henry (captain of the British team) and Fan Hailan
Ding Junhui (Xiaohui) and Fan Hailan (Xiaofan) are good friends and rivals, so they are CP. Fan Hailan (Xiao Fan) was born in the UK and was friends with Henry (the captain of the British team), so he is also a CP.
PC meaning: partner, partner, friend
It’s just a collective term! Nothing surprising!
Hope to adopt! ~