Been friends for 4 years, met on the school run.
I've done a lot for this friend over the years, given her money, paid for nappies for her dc when she's asked me to pick them up from the shops and she never paid me back, given her all sorts to help her and she's never returned the favour, I even leant her something then a week later she sold and kept the money for claiming she didn't know it was mine! She's stopped talking to me before for months and then randomly decided to start talking to me blaming me for it saying she wasn't sure if I wanted anything to do with her even though I messaged her twice asking if she wanted to meet up! Done birthday drinks at mine for her and baked her a cake on my birthday she didn't even say so much as a happy birthday yet messaged me throughout the day with her drama.
Anyway I tried to keep the peace as our dc are friends and she works at dc school so thought it'd be awkward if I told her truthfully how I felt that I felt let down and hurt by her using me.
Today I've woken up to a message asking why I've made a new Facebook account and not added her and then she's deleted me off another platform. 
I don't use my personal Facebook it's been deactivated purely for the drama it brings and my second Facebook account is purely for entering competitions I have nobody I know on it, the only way you can tell it's me is the fact I have my real name on the account as I'm entering competitions. 🙉
Now this has really pissed me off, not only do I feel like she's stalking me a bit online but why delete me after everything I've done for her! AIBU to completely ignore her from now on even when I see her out and about? It was only yesterday morning I saw her and stopped and spoke to her and she was fine with me.
I have autism as well so I'm not great at friendships/socialising.