Suitable places for couples to eat: western food, green pavilion near Northland (the environment is acceptable), Chinese food: Le Tai Xiaonanguo, Guangming Fishing Port, and Japanese food: Yixiu Sushi. There is nothing particularly delicious in Shijiazhuang. You can take her to Beijing to eat Thai food and see a small theater.
Play: You can go to a 3d movie or go skating in the center of Le Tai, listen to cross talk, or listen to rock music in an underground velvet bar.