Hilary Duff is a single woman again, and it sounds like she's loving it. After breaking up with her trainer, Jason Walsh, in December, the Younger actress is focusing on her family and career. Hilary stuns on the February cover of Cosmopolitan, and in her accompanying interview, she opens up about dating, coparenting her 4-year-old son, Luca, with ex-husband Mike Comrie, and why she's looking forward to turning 30 this year.