鄭子誠一直以來有「御用奸人」之稱，在TVB劇集《法證先鋒IV》裡飾演Louis，因酒後亂性背女友Queen姐（陳煒飾）出軌，與對方的好姊妹康華搭上，看得女人咬牙切齒。雖然鄭子誠長相好奸，但他在現實中是個愛妻號，與才女劉倩怡結婚多年，仍然十分恩愛。
鄭子誠與劉倩怡由拍拖至結婚已經25年，至今仍然形影不離。鄭子誠視對方為自己的靈魂伴侶，表示只有老婆在身邊時，才有一種溫暖及完整的感覺。
鄭子誠與劉倩怡於90年代因主持港台節目《今夜真情》而定情，一拍拖便拍了8年，直到2003年結婚。記得拍拖之前，兩人已互生好感，男方覺得對方有性格；女方則覺得對方寡言好有型，所以慢慢有感覺。
而鄭子誠追求老婆時，最愛寫充滿情話的小紙條，成功俘虜了對方的心。直至現在，於特別日子如結婚紀念日，他依然會寫心意卡給劉倩怡，十分浪漫。劉倩怡對鄭子誠最深刻的話，就是「昨晚你在我腦海裡走來走去，今天的你可覺得累？」她表示看完很甜蜜。
雖然兩人至今仍很恩愛，但之前經常發生磨擦，試過多次鬧分手，還差點結不成婚，冷戰了接近一年。當時劉倩怡要到阿富汗工作，鄭子誠發現對方不在自己身邊，是多麼的難熬，才意識到對方的重要，所以每日傳一封電郵，更決定等對方回來結婚。
因此兩人熬過不少難關，如今能夠一起到老。
圖：劉倩怡FACEBOOK
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【寵主請留步】《社群》送您AQUA PRO+TECH「寵物護理入門套裝」🛁！
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