Is it normal to dream about your lesbian crush?

I had this hilarious dream of my lesbian crush and the guy I'm seeing. When it comes to my crush, I just started to like her because she has my style and she's is ideally what I want to be. Then as I followed her on instagram (she's like a famous social media person), my idolizing turned into crushing and she's just the best. Then I always had this thing in my head where I know the guy Im seeing would be into her, like thats his type of girl I'm assuming. But at the same time, another reason why I like her is because I think we are very similar. I guess it all came together in my dream the other night. We were at the beach and he and I were having trouble and apparently, he finally met her and I got so insecure and jealous that I was literally trying to be her. I would observe how she would run in the sand and toss her hair and try to do the same but it all came out just bad and I would get so irritated lol! I guess it was more of a literal version of what I always thought of him and her being perfect for each other. The last thing I would want though is for all of that to come true. I think I would just move far, far away cause for me, she is perfect and I know I can never be her. Again, she has my style so its not like I'm copying her but cause shes social media famous, shes more out there. What do these dreams mean anyway? Who believes in dreams and what impact do they have on real life? I have had a few dreams of my dude lately but cause we were rocky. I heard dreams are the opposite of whats going on or what will happen so in a way thats good, cause all these dreams have been a bad story. People quickly think whatever the dream is, is or will be the reality but I think it goes much deeper than that.