The two, whose love blossomed out of friendship, once took a vacation together to the US, where they stayed at the home of Taiwan television personality Fang Fang. But it was during that trip to the States when Fei Yu-ching got cold feet about the relationship and apologized to Chiang Hui, saying "Maybe it'd be better if we're just friends."
對象是個性灑脫的女歌手江蕙，兩人由友誼發展到互相愛慕，還曾相約到好友方芳的美國家中遊玩。不過，就在那一趟美國之旅，費玉清臨陣煞車，對江蕙抱歉地說：「我們還是做普通朋友的好。」