Maybe you had this dream because you mentioned or met her in your daily life. For example, I overheard her husband say that she was young and said a little too much. Or listen to your cousin inadvertently talk about your husband, or indirectly. At that time, you didn't care, and you didn't feel wrong. But some potential consciousness still exists.
In other words, your dream also reminds you to dress up, pay attention to health and stay young.