For the existence of this Weibo, the reason is actually easy to understand. On the one hand, although the split Weibo was interpreted by the outside world as a rumor, he was later slapped in the face. But literally, Zhao Liying didn't directly deny pregnancy, so there was no such thing as slapping her face.
On the other hand, if Zhao Liying really deleted the Weibo in the voice of doubt, it would be make a fool of oneself's face. So she hasn't deleted the controversial Weibo, which is also thoughtful and intentional.
In fact, there are many complicated things in the entertainment circle. Behind every artist, there is a team. These teams make suggestions for one person, and then help one person to restore his reputation, so that these artists can have a chance to make up even if they do something wrong. For these artists, these public relations teams are like military advisers, constantly wiping their bottoms for them every day. When the artists make some measures, the public relations team will immediately gather their wisdom and help one person in various ways.
Although Zhao Liying's screen image is pure, it doesn't mean that he is naive and romantic, so I personally think that the reason why Zhao Liying didn't delete this Weibo is mainly to make other black powder people have no topic to say. After all, there is already such a black Weibo, and even if we use other places to discredit Zhao Liying, it won't have much impact on Zhao Liying.