As like as two peas, there are no differences between what they love and what they make. They are all respectfully known to other daughters. They read the same way. Many people may read yuan as a mistake. However, although lingai has been used in Liaozhaizhiyi, in fact, this word does not exist, and most of it is lingai. What's the difference between lingai and lingai? When we write, sometimes it may involve calling other people's relatives such as daughters or sons. Generally, it's OK to directly say your sister or your brother in daily life, but it's inevitable that it's not appropriate when we write. We should use a more rigorous honorific.
There are as like as two peas in describing what other girls are saying. They are love and decree. These two words are no different. They are the same as reading. Notice that you can not read yuan as a "Yuan".
Although we have seen the word "lingai" in Pu Songling's strange tales of Liaozhai, this saying does not actually exist. Now the most common thing is lingai, so we must pay special attention.