色衰爱弛（色衰愛弛）　

◎ 色衰爱弛 sèshuāi-àichí

[lose beauty as well as affection;one‘s love of the woman disappears after she has passed her prime] 色:姿色。弛:减退。女子因姿色衰退而使受到的宠爱减退

昔者弥子瑕有宠于 卫君…及 弥子色衰爱弛,得罪于君。——《韩非子·说难》