I'm so beyond pissed last night I posted on my son's 1st Birthday party invite on Facebook that "if…

I'm so beyond pissed last night I posted on my son's 1st Birthday party invite on Facebook that "if you or your kids are sick please don't come to my son's party thank you" which you'd think all mothers would feel the same way and that not taking your sick child a birthday party is just common sense well I guess not for my SIL she got all shitty messaged me on fb and said she won't be coming to Noah's party because I posted that and yes her kids may be sick now but my son's party isn't till the 25th also she always thinks everything like that that I post is about her!!!!! I just swear I'm so sick of it all 😡😤😈