Women wearing attractive clothing when leaving the home

Is it permissible for women to wear Cardigans over their abayas. These cardigans have floral designs? I told my wife that this is not allowed because its attractive. She said some of her teachers in the Madrasah said it is permissible. I have increased my Mujahada and Duaa in trying to reform my wife. But these Scholars now a days cut off my legs. Mufti Saab say my wife is insisting in wearing these floral cardigans which are attractive in nature with her abaya and stuff and I say no to her she listens but then she gets upset and nags with me. She will remain sad the whole day. Should I not give in? I want to deal with her in kindness but not at the cost of breaking the commands of Allah Ta'ala. Please explain to me in detail.