Duke Zhou, is it unlucky for me to dream of a letter from my ex-wife?

Most of the letters in dreams represent the known past. The dream of receiving a letter means that you don't want a specific object to know the secrets of the past, but there is also a conscience warning about whether you should tell the other person. I dreamed that when I received a letter from my favorite friend, something happy would happen in the opposite sex relationship. At a friend's birthday party, I was introduced to several members of the opposite sex. Maybe one of them likes you.