What made Yongqi give up the throne and go to Dali with Swallow in Zhu Huan 3?

The power of history ... because the history books say that only one son of Qianlong became emperor, named Yan Yong, not Yong Qi. ...

I haven't seen "Zhu Huan 3" carefully, but my mother is a groupie, chasing Zhou Jie's Erkang, which has always puzzled me, but I watched several episodes with the old man. I don't like crystal, Swallow 3, and I don't like Malik Yili. I think it's a bit exaggerated ... (personal opinion) but Aunt Qiong Yao's TV series should be that men can give up everything and take their beloved woman away. This is the power of love, above all.