Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) says: A man said: "O Messenger of Allah, I am married to a beautiful daughter of my paternal uncle, but she does not repel the hand of anyone who touches her." He (peace and blessings be upon him) said: "Divorce her." He said: "I cannot bear to be without her." He (peace and blessings be upon him) said: "Then keep her."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب النكاح / 13870