In fact, whether a rich girl will marry a poor boy for a long time depends on whether this guy is self-motivated and whether he can get more wealth by his own hands and brain. Some people are just born in poverty and have their own ideas, but they don't have much resources and funds to fight for opportunities for themselves and have no chance to show their talents and abilities, so they have always been poor boys.
But after marrying a rich girl, many poor boys began to use some resources to get more opportunities to show their talents. I know a boy. He was born in a poor rural family, but he was smart and eloquent, and finally married a rich girl. After that, I began to display my talents and borrowed some money from my mother-in-law, which made me rich. Rich girls are also very happy after marriage, because the young man feels that his wife has brought everything and contributed a lot.
Of course, some people just say that they can't do it and are lazy. They chose to marry a rich girl not for true love, but for money. Even if such a person marries a rich girl, he will get a large dowry, and eventually he will live on his laurels, without great development, and eventually the rich girl will leave him.
So many times, many things will vary from person to person, and we can't generalize, especially emotional things. Some people will be happy for a long time no matter who they marry. But some people, no matter who they marry, will not be happy and will not last long. The choice and decision are in your own hands.