Be honest, was i leaving my best friend out?

my best friend can get annoying at times but i dont tell her. she made me late for school this morning because she was getting money out of her car. it really pissed me off because i got told off and she didn't. i sat next to one of my other best friend called abbie in spanish and sat with her at break along with my other best friend. but my other best friend isn't in my lessons so all the lessons i had leading up to dinner i sat with abbie in. and when dinner came we got our dinner and i would normally go up in the art corridor with some friends. i was trying to look for my best friend to tell her i was staying downstairs but i didn't see her at dinner. when i went into 4th lesson i was getting e-mails of my friends saying that im a go-off and i left my best friend out. but they don't realise that i have other friends. i hate the art corridor everyone is always in morbid moods plus today a friend i fell out with was up there and i cant stand her.. so was i leaving my best friend out? Abbie's other friends didn't have a go at her for sitting with me at dinner so do you think my friends are being sad and pathetic?