Nicky Hilton and James Rothschild will “never” go to bed on an argument. The 41-year-old socialite has been married to financier James, 39, since 2015 and just months after celebrating a decade of marriage together, she has revealed that she has relied on relationship advice handed down to her by her mother Kathy. She told People: “I feel like some of the advice my mom has always given me is [to] never stop having fun, never go to bed angry and just to stop and smell the roses and enjoy every moment.” The TV star also noted that her mother Kathy – who is known for her appearances on ‘The Real …