Loads of things: phoning me up and telling me to make sure the meat was cooked through properly when she was coming for lunch, like I was planning to feed her a live chicken 
Mentioning infront of her kid at some point that she didn’t like my ds(5) stroking her baby’s head and he was annoying. So her son mentioned it to my dd.
Telling me my floorboards show up dirt quickly :/
Telling me her son said our garden was messy :/
Telling me she was tired all the time and parenting was so much hard work when she’d leave her kids at her mums for sleepovers or during the day and her parents would come and do her gardening for her
when she knew I had absolutely no one to leave my kids with and I had absolutely no break from them at all.
Writing quotes on WhatsApp about not getting angry at your kids when that last day she visited I’d really had a bad day and had to tell me kids sternly to be quiet so I could talk...so not really being an understanding friend at all.
Telling me my bra was showing through a button gap, like I was a slut.
I think that bra showing thing was the last stop to fuck off land. And I supported this woman through a miscarriage, marital problems and a tough pregnancy. I picked her son up and dropped him to school when she couldn’t face it through her problems. All I got for it was nitpicking. Bitch. I still see her at school runs but I just say hi and bye.