It is a fact that communication is not an exact science and just because one person writes something that is grammatically correct another will, invariable, mis-interpret it. I have had it happen over and over. Even with spoken communication the fact of body language and different life experiences makes for different meanings.

She must have been having a really bad day. "Not very literate are you" needs editing, obviously (punctuation. Just saying. And you are so right; women need to support one another fully. Hugs.

Good for you for not allowing her to behave awfully towards you! I hope she gets the message (i highly doubt it). Alas you did right by you.

Women are just as fucked up as men, sorry to say. Downside of being human.

I edit all the time

I do a lot of editing, usually just minor things. I want my writing to be nearly perfect.

We should all support each other when possible because that is the most rational course. When we get off course in that regard we should just shrug it off and get on with life.

Everyone has the occasional bad day. But there's never really a good reason to be rude.