I broke a small promise to myself and now Tumblr is boring and sad

Let me start this off with a backstory: a couple years back I had this crush on a girl but that girl was so insanely straight to the point that once she caught wind of said crush she cut me off completely and made most of my grade very much not like me. Since then I made a mini vow to not have any serious feelings for people. I was fine living my life like that until my friend group cut me off and this absolute goddess sauntered into my life. 

She's in my friend group and I just can't figure her out. Every post I see on Tumblr right now is about someone's happy relationship or someone confessing to their crush or something like that and I'm so mad. Her friends (other than our little group) hate me so I can never get close to her. I see her as both an amazing and beautiful person and as a challenge. She's at my level academically --and I know this is going to sound so arrogant and Raskolnikov-esque-- but I've never met someone my age who can match and even exceed me intellectually. 

Dear God is she so kind, positively ethereal, funny, sarcastic, and quite demeaning sometimes. and this is going to sound so vain but she is gorgeous, we compliment each other perfectly and she always smells and looks AMAZING. I've never felt like this about someone before, we like most of the same things but she keeps me on my toes with her opinions. I truly believe that I am head over heels for this girl. If she lets me I would treat her like the absolute beauty she is. 

I need her in every sense of the word. If I'm not with her, I'm texting her, and if I'm not texting her, I'm thinking about her. I will do whatever she'd ask of me in a heartbeat. I love her in every way. The Greeks believed in multiple types of love; Philia (affectionate love), storge (familial love), agape (selfless love), eros (sexual attraction), ludus (young or playful love), mania (obsessive love), philautia (self love), and pragma (enduring love). I love her in every one of these ways (well, except storge and philautia). 

GOD why do all of her friends just have to hold on to petty grudges and keep her away from me. She makes my stomach hurt, genuinely. Please help, you guys, idk what to do about this and I'd appreciate some advice