DUBAI, United Arab Emirates — It was supposed to be a romantic getaway for Sarah Mettee and her husband, a warm winter break in Dubai away from their three young children to celebrate their 20th wedding anniversary. Instead of relaxing in the sunshine, Mettee told NBC News on Monday, they had “seen and heard a lot of rockets — some of which had been “intercepted right outside of our hotel” — and called it “terrifying.” NBC News agreed not to name the hotel over fears it could be targeted because there are a lot of American tourists staying there. Now, like hundreds of thousands of travelers across the Middle East, Mettee is stranded in the region. Flights have been grounded after Iran retaliated with strikes on many of its neighbors, including the United Arab Emirates, after the United States and Israel bombarded the Islamic Republic, killing Supreme Leader Ayatollah Ali Khamenei.…