best friend??

I don't know if she thinks the same for me but I consider her my best friend and I'm so hurtfully obsessed with her like to the point where everything makes me think of her and I always think about what her opinion on everything would be and I just always have her on my mind and it's so annoying because we don't even talk that much anymore and she talks to other people more than me and it's been really hurtful and I've been crying almost everyday because of it because I still consider her my best friend but I don't think she feels the same but she can literally make me do anything if she just asked? I don't know if this is BPD but this doesn't feel normal and doesn't seem healthy that I even prefer her over any of my other friends or even my parents?? I would drop everything and everyone for her