She showed her “true colors “ when you shut the money off.
My mother used to say never loan any more money than you care to lose.
Good advice! I only got stung for $20 by a supposedly good friend in my 20’s!
Several decades later she must’ve forgot all about the unpaid debt. She called me to loan her $1,200 for a court fine!
You learned your lesson hopefully. Move on and don’t be a turd!