Her mum says that there's nothing I can do to change things
This is garbage, Of course you can change things.
You cant change HER, but you can certainly change YOU. And you never know what kind of effect your long term change will have on her.
So, time for change!
Id start by stopping to mindread everything she does. Nobody knows why she put that on FB...Likely, she wanted you to read it and start an argument, but who knows?
