I like the falling in love part of relationships
Why is that your favorite part?
It feels simply really good when you feel that intensity of emotions and connection to another human being.
I like it too. The feeling of a new relationship is so exciting. I understand why you are feeling that way!
I want a new relationship so bad but I'm afraid of rejection so I'm staying single.
It's true that rejection hurts, but does it hurt more than a new relationship would make you happy? You need to weigh how much you value entering a relationship versus how much you fear rejection.