Why didn't Shangguan Waner remember Wu Zetian's genocide?

I think it was influenced by Wu Zetian. Just when Shangguan Waner was born, a fortune teller told her that she would be the best in the world in the future, and young Wan'er was able to shrug off this. Later, due to some family reasons, she was exterminated by Wu Zetian. At that time, she had a great resentment against Wu Zetian and wanted to avenge her family. Wan'er was brilliant since he was a child, proficient in poetry, books, music and everything. The world cheered for her, and soon her beauty and talent spread all over the palace. Wu Zetian admired her very much after knowing her talent.

On one occasion, Shangguan Waner wrote a seven-step poem, in which the words were full of ridicule and resentment against Wu Zetian, but Wu Zetian was praised without anger. It was also because of this move that Shangguan Waner began to have a different understanding of Wu Zetian.

Soon, Shangguan Waner became Wu Zetian's personal secretary. In ancient times, the duties of a secretary were equivalent to eunuchs. Shangguan Waner had a good family. How did she end up in such a mess? The fire of revenge in her heart rose again. But there is a reason why Wu Zetian arranged her beside her, because Wu Zetian didn't like watching the throne, but there were so many ancient memorials that she had to watch the whole country every day, and it happened that Shangguan Waner's talent attracted Wu Zetian, so she arranged Shangguan Waner beside her. There are not a few people who naturally please Shangguan Waner every day. It was these vain and powerful people who pleased her and let her put down the spear of revenge in her heart, and her vanity was satisfied, which just printed the fortune-telling words at that time and weighed the world. In ancient times, the grace of dripping water was rewarded by spring water. Wu Zetian let Shangguan Waner's career reach its peak, which is an honor that she can't get in her life. Facing the desire for power, Shangguan Waner also put down her hatred.