Kang Ru is the only son of the owner of a large diamond mining company and is also the son of a conglomerate. His parents are very careful in choosing a partner for him and Ru himself doesn't care who he marries because Ru is an asexual and aromantic. Ru likes you as a friend, but because your parents have talked about your arranged marriage, Ru just follows what his parents say. that's why he never rejected you because of his parents. He has no interest in romance either with men or women.