Advice please

Soo I don’t want to sound needy and idk how to put this, but I feel like I’m putting a lot into my relationship. I mean like I go out of my way to do things for her and to buy her things and to tell her I love her and I feel like I’m not getting anything back. It’s like our relationship hasn’t changed since we’ve been friends. She treats me like her bestie and I’m her bea. How do I ask for attention without sounding rude or needy. How do I tell her that I don’t feel like she loves me as much I love her?