What is the good fortune in experiencing misfortune?

I remember the first time I understood this sentence when I was watching the TV series "Heirs". A woman says to a man, "You are the lucky one among my misfortunes". Of course, there are also many lucky people in daily life. For example, although you are ugly and unfortunate, fortunately you are not a dwarf. For example, although you are not tall, you are lucky to study well. Also, although your family is poor, fortunately, you got a grant. Anyway, there is a silver lining in misfortune, which makes people gasp. Fortunately, my misfortune is similar to that of my successor, that is, although I didn't do well in the exam, fortunately, my boyfriend and I went to college in the same city. Of course, he gave in to me and chose a university that was not very good in our city. We met in the last year of senior three and began to fall in love. Yes, love in such a special period is not easy to be true, just like love in cholera period. Choosing to fall in love when the college entrance examination is about to take place is a risk in itself. Many people choose to break up in order to study, and it is not easy for us to stick to it. Losing the college entrance examination, really working hard for more than ten years, is really a big blow to us who study hard at the cold window, but fortunately my boyfriend came with me at last. He could have gone to a better university and didn't have to accompany me. Because of him, I found luck in misfortune. I am very happy. I am very happy to meet him and meet a person worthy of your life. I am very touched. I hope everyone who is unfortunate will not be sad. No big deal. Everything you lose will be returned to you in another way. Fortunately, I'm still waiting for you in the back.