@dohufinalyearner I really wanted to ask how you ended up considering yourself "best friends" but then I saw that 4 years ago part.
I don't know her side of the story, but if someone ever treat me like an option, I am definitely treating them like a choice.
Or maybe it is because your bestie knows you would always be there that's why she is... taking you for granted... Or whatever this is.
And it has nothing to do with being privileged or whatnot, if they care for you, even without you talking about it or liking to take advice or whatever, they would actually show that they are always there.
So...how about putting them on the archive list in your memory? You don't cut them off, remember there are there when your mind wander, but unless they make effort, you aren't making one too.
I hate other treating me l*e shit so I avoid doing that too. I swear it is the worst feeling in the world