ending a friendship

"Hey Bob, sorry I haven't seen you much recently, I've decided to prioritise my friends who don't do that embarrassing slurpy thing when they eat. Bye forever."

Completely otm imo

never realised how unusual it was to not do friendship accounting/try to optimise social relations

not sure "abusive behavior" is necessarily accurate in all cases when they just might not be a great friend
I mean, if I did something genuinely irritating or socially abusive it'd be good to be clued in
I don't need a call or letter from someone when they decide to stop being my friend because I rebuke their political rants.