please help!

Katelyn • artist || lesbian

So I am bi and I just came out to my best friend. The thing is I have been best friends with her for 3 years now. I also have a crush on her. She is beautiful and smart and independent and I love her. I don't want to spoil the relationship we already have, but everytime I am with her I can't help but fall for her. I don't know what to do. I have had other crushes before and I have always wanted to impress them, but with her I can be myself and happy. (side note: I have not come out to my family) I just can't tell if it is infatuation or I really do love her. She also is afraid to love and I am afraid of not being loved. I need help. Please and thank you.