The First Prince Consort of the Tang Dynasty

Everyone knows that there were two difficult things in the Tang Dynasty: one was to study with the prince, and the other was to be the princess' consort. Because in the open-minded Tang Dynasty, being a prince-in-law was something that required courage and a mind as broad as a super aircraft carrier. The other consorts were walking on thin ice, so why did Zhao Zixuan take it so seriously? Other consorts can only marry one, and they have to be secretive when looking for flowers and willows. How come Zhao Zixuan can have three wives and four concubines, and all of them are rich and beautiful? Other consorts can only mention it briefly in the history books, but Zhao Zixuan can write a special book about it? What Tang writers, politicians, military strategists... When a consort can achieve this level, Zhao Zixuan can be regarded as the best consort in history. What's his secret, you ask? Zhao Zixuan sweated, there was nothing he could do, why did we come from time travel?