Would you call a girl out if she posted about you on FB?

So this girl I know and have tried to be friends with has made a post about me on facebook because I didn't let her know that I was too busy to hang out last weekend :/ so dumb. this girl is one of those girls that love to start shit but then loves to play victim even more. I can't stand girls like that. this girl has been getting on my nerves lately then she goes and does Shit like that. My whole life I let people treat me like shit and walk all over me and I vowed to never let it happen again. I want to say something to this girl, I feel it almost necessary. I would be nice as possible about it but still have a backbone. but my husband is the type of person who doesn't like starting anything. I just wanted to see what you girls would do. I don't have very many friends and I feel like it's because I do stuff like this. but then I'm conflicted because it feels like I don't stand up for myself.