Dreams could reveal how one’s unconscious portrays their desires and passions. If someone were to dream about their crush, the interpretation is that they want to be around someone who is an attractive person yet appearing unattainable.
It is a common saying that if you see your crush in a dream, then they are the one that feels they like you back. Some say that their crush come to them to give them clarity about themselves and how to proceed with a possible relationship by way of dreaming about him or her.
Dreaming about a rejection from your crush deals with feelings of inadequacy, shame, inferiority and all that negative feelings that come with being rejected. Also, you may be emotionally disconnected from others or may be jealous of what is happening around you and thus projecting those feelings of rejection onto those who they envy first before it even happens in the waking hours.