[ Friends ] Open Question : how do i show off to my "best friend" who is constantly competing with me?

she makes everything into a competitions. i think shes fake sometimes, but then i wonder if she thinks the same about me :/ at her bday she completely ignored me and made me feel so alone, as she hung out with other friends and danced the whole night! she even got annoying when i started talking to some other girls bcuz she kept interuppting us and listening to our convo and butting in. i was talking to someone and she said "ohh ya talk to alice shes soooo nice" and then shes like "she doesnt bite i promise" and basically showed off the whole night! just to me tho.. also, everytime she'd walk past me, she'd kinda touch my hair and call me "sweety" it was annoying, she over did it with the whole "sweety" thing. so now its my bday party and i want to kno how to get her back, i dont want to act all conceited like her bcuz that will only make me seem as FAKE as her. so how do i respond? i want to show off alot tho and show her that im happy and i dont care for her, without being mean or FAKE ..thanlks