What are the classic short English love words?

Today is the annual Singles Day! I wrote a sentence on the blackboard when I gave a lecture outside the school today and told them some English knowledge. Then some students got angry and said, Teacher, how could you do this? Did you use this sentence on purpose? I wonder if today is a double 1 1? Guess how to say this sentence in English?

To the world, you are one person; But for someone, you are his whole world. Do you know what this sentence means? In fact, this sentence is very simple, that is, to the world, you may be one person, but to someone, you may be the world. That's what we do in life. If we like a person, we will give everything for him. He is your world. Without him, you will feel that the whole world is against you. So this English sentence just expresses that meaning and corresponds to today's scene. I said this sentence today, indeed, is a kind of harm to some single dog. I am helpless and can only wish them find boyfriends and girlfriends.

Whether the ending is perfect or not, you can't disappear from my world. No matter how it ends, you can't disappear into my world. My boyfriend once said this to me on my birthday. He was very happy and really excited. He said that no matter what happened, he would not leave. The girl's heart is pounding. Because it is a long-distance relationship, she especially cherishes the time of talking and staying together. Girls sometimes feel uneasy and sad for no reason. Therefore, at this time, nothing can be worth saying "I miss you". I will be very happy and warm-hearted to hear this!