Actually, before the first stage even began, Xia Siyu was already preparing for the second stage.
There weren't any of those little clothes at home, like lace or sheer outfits or anything. Firstly, she and Bo Yan haven't been back together for long, and both of them are so busy that they hardly see each other. When they do meet, it's usually out of town, on set, or in a hotel. With so many people in a hotel, she has to juggle filming, shooting variety shows, and being wary of paparazzi. Making time for a relationship is hard enough; where's the time to prepare these things?
She and Bo Yan are still in the honeymoon phase. Although they occasionally play around a bit, it doesn't include buying these things. Xia Siyu is quite confident in her face and figure; what does she need these flashy clothes for? Bo Yan thinks her face is more than enough.