Nick and Vanessa Lachey “make time to prioritise each other”. The 50-year-old star and Vanessa, 43, have been married since 2011, and Nick has revealed how they keep the spark in their relationship. Nick – who has Camden, 11, Brooklyn, nine, and Phoenix, seven, with his wife – told PEOPLE: “Sometimes you have to be deliberate. You have to make deliberate attempts because the spontaneity, the romance, whatever you want to call it that existed pre-kids, it just can’t exist the same way. “And I would argue that it shouldn’t exist the same way because your priority should be your kid, but you have…