The matchmaker said that the woman is "not easy to dress up", which means that the woman's dress, grooming, image, etc. are not appropriate or attractive enough in marriage and dating. The matchmaker may want to remind the woman to pay attention to some details in this regard to make herself more charming and attractive and increase the chances of interacting with others. Of course, this also requires attention not to overemphasize appearance and grooming, but also to focus on the display of inner qualities and personality characteristics.