@Floral I think you should tell her how you feel about her, the pain of being rejected will always last a bit but regrets never go and u don't need to necessarily put a word on all that, people like to categorise humans relationship and sexuality in really strict different boxes but every human relationship is different and fluid with time, u don't need to be sure if it's love or platonic feelings just be honest w both urself and her, tell her u like to be with her, she make u feel a different way than other do and that u would like to stay in contact with her and maybe even get closer, don't put pression on urself just try to do whatever u can to not regret it later, wish u luck with that one bestie <3 (hope I helped a bit lol)