My mom has got to be insane or something

So I’ll start this off saying that I NEEDED to rant and get something off my chest that has been bothering me for a very long time.... My mom will claim to love whoever I am with to my face, their face, anyone who asks as long as she’s sober and making an actual attempt to seem like a genuine person but then she will drink herself into a stumbling, babbling mess and start picking fights just because she gets bored and feels alone.....

So this all started from me sending my husband a picture of our oldest son (whom my parents have custody of and I’m visiting atm) and I enjoying a blizzard, he posts it on Facebook, mom sees and throws a huge fit about it yesterday morning when she sees it. Calls me bitching that it’s a breech of our sons privacy and doesn’t let him be a kid etc etc. I tell her I can not control what my husband does with the pictures that I send to him but I will relay her concern.... I don’t obviously because why should we have to hide any aspect of our lives from anyone.... fast forward to tonight, him and dad talk and come to an agreement that he will send mom an apology etc (here is the apology

Pretty civilized and polite for someone who has been dragged through the mud by this woman for the last 16 years if you ask me... to which she responds with:

Needless to say this is putting MEGA amounts of stress on our relationship which is still being repaired from damage we did to each other after our son was born.... he’s ready to tell me to stay here at my parents house and call it quits.... unfortunately trying to point out to her that she is in the wrong goes over like a lead balloon.... please please please let me know what you would do....

Side note on this is neither my husband nor I have any parental rights in regards to our oldest son (again thx mom)