As someone said above, your mother will definitely gaslight, minimise, abuse some more.
People need to be a lot more clear headed about abuse. If someone abuses you, it's because they want to. Particularly when it was so carefully planned out.
OPs mother has emotionally betrayed her, humiliated her, opened the OPs home to strangers, destroyed her feeling of safety and comfort in her own home.
Why did her mother do this? It was because she wanted to. She made choices, knowing that it would harm the OP.
So either she cares nothing about the OPs feelings, or she wanted to hurt her, those are the only logical options.
Of course her mother knew, absolutely she knew, what the outcome would be that the OP would be horrified and distressed. But she wanted to do it, so she did.
This is why I have given the OP the advice to absolutely shut her down, ignore her completely, block her on social media. Not another word. Her mother is fully expecting to gaslight the OP into submission now. What she did is, actually, unforgiveable, normal people see that. But she's not planning to try to gain forgiveness - what she did was unforgiveable anyway - she is now just planning to gaslight, DARVO and dismiss.
The only way to punish someone this cruel and deliberately disrespectful is to ignore them, to pretend they simply do not exist. OPs mum is now expecting her daughter to chase her, to be upset, I'd bet a thousand pounds she's planning to call OP a drama queen and gaslight and minimise her till OP doesn't know what way is up.
Don't do what the abuser expects you to do OP. Pull the rug out from under her . Delete her from your life until she comes begging for forgiveness. And if she never does - well, so be it.
I cannot imagine ever having had to treat my mother like this, but my mother was a good, decent, honest, trustworthy woman and though we had our fights she would no more have betrayed me like this than she could have grown wings and flown to the moon.
Your mother is not good, decent, honest or trustworthy. She should be treated as such.