Can you recommend an ancient novel with the female protagonist as a hidden divine doctor, the male protagonist as a prince, and the male protagonist with rich emotions?

The female protagonist saved the male protagonist's life in the mountains. The male protagonist fell in love with the female protagonist at first sight and married her. She doted on the female protagonist in her daily life, and the female protagonist slowly adapted to the male protagonist's love. Later on, the female protagonist's old friend told her about her background. The female protagonist was once a princess of a small country and her country was destroyed by the male protagonist. The female protagonist chose the male protagonist between the male protagonist and her hatred. She killed her old friend and hid in the mountains in sadness. The male protagonist guarded the foot of the mountain for several months. Later, he went up the mountain to find the female protagonist. The female protagonist even brought a disciple up the mountain. There was also a little bit of content at the end. In the end, the male lead became a monarch (similar to an emperor), and the female lead was a monarch's queen. The female lead had a very indifferent personality (the type that did not eat the mortal world), while the male lead was affectionate and strong. I read it in 2011, but I can't remember its name now. The number of words in the article was medium, and the writing style was not bad. I've explained it in detail. Dear friends who have read this article, please let me know. Thank you! The female lead didn't talk much, and "Shameless Young Master" wasn't even worth mentioning.