What happens when you dream of dating someone you like?

I've Heard that when you dream about someone, The person you dreamed about fell asleep thinking about you or something like that. and then they might talk to you the next day

Dreams are about the dreamer, and express the dreamer's own thoughts, emotions and, occasionally, obsessions. The belief that the person had been thinking of the dreamer does not stand up to the most simple logic: thousands of fans dream about their beloved celebrity. But that does NOT mean that the celebrity had been thinking of each one of those specific fans and caused their dreams.