Yoyo has declined to talk about their relationship in recent years, sparking rumours that their marriage is on the rocks.
And her lack of a reaction at Vincent's Best Actor win at this year's TVB Anniversary Awards only added fuel to the fire.
On Wednesday (Sep 15), well-known Hongkong fengshui master Edward Li held his first solo calligraphy exhibition and Yoyo and fellow actress Winki Lai were guests at the ribbon-cutting ceremony.
When reporters asked Yoyo if she would like to try for a son, Edward interrupted, saying: "With whom? She doesn’t want to reconcile."