Actress Hailee Steinfeld is gracing the cover of Cosmopolitan?s December issue, where she opens up on love! Steinfeld, who has been dating musician Niall Horan for nearly a year, seems to be smitten! She shared, ?When you fall in love, you pick up on the tiniest things about yourself. I want to make as much room for you as possible.? The 21-year-old continued, ?You start doing things for this person and going out of your way to make them happy.