In The Legend of the Sword and the Chivalrous Man, does Solanum nigrum really only have a crush on Longyang? Why?

In Legend of the Sword and the Chivalrous Man 3, Longyang Solanum nigrum and Solanum nigrum are brother and sister.

In Jiang Guo, Longyang had no memory of Erigeron, except that he was the prince of Jiang Guo and the younger brother of Solanum nigrum. In Longyang's eyes, he is in the deep palace all the year round, and the maids around him can't compare with the beautiful princess. Why didn't he let Solanum nigrum die for the sword? Is it just a simple feeling between brother and sister? Longyang's righteousness comes first. If it's just brother and sister, as a prince, he has such a lofty ideal of governing the country and desire to practice martial arts since he was a child, which can completely make Solanum nigrum sacrifice himself and save the fate of the whole country, instead of subjugating the country and exterminating the species.

He sacrificed his life just to keep Solanum nigrum alive and grow sunflowers in his own place. He didn't want to trade Solanum nigrum for his country. But I am willing to exchange myself and my country for a life for Solanum nigrum. He loves Solanum nigrum deeply, as can be seen from his amorous eyes. But Longyang always defends his country and his love for his children is hidden in his heart. Although Longyang is a national key, Solanum nigrum is an inseparable part of his heart. Although he loves Solanum nigrum very much, he is a monarch after all and always puts national affairs first, so everyone can't see Solanum nigrum's love.

Of course, he didn't expect Solanum nigrum to love her so much that after her brother's death, she didn't have any motivation to live, so that she could die for a sword.

After his rebirth, he found that Brother B is just a pawn shop punk, and he has no heroism at all. What is even more disappointing is that he is no longer Longyang, but a mixture of Erigeron, Longyang and Sedum. When all three people have memories, it is actually unfair to Solanum nigrum. In the forest of Gu Teng, Jing Tian told her the people he loved, including Solanum nigrum, which made her very happy. But slowly, because of the old fort owner and Du Feng and his party, Jing Tian fell in love on the bridge of fire, and at this time, Solanum nigrum had long been forgotten.