((meadowsis)) - You are NOT a bad sister for letting him sit in jail. I'm both an RA and a recovering codie - I NEEDED to sit in jail, every single time I was there. I NEEDED my loved ones to say "you got yourself into this mess, you can get yourself out of it".
Then I needed to learn to apply the same things to the A's still in my life. I call the promises your brother is making "jailhouse talk". My ex did it all the time and he never followed through.
I hope you keep reading around and posting. I hope that you can focus on YOU and let your brother deal with the consequences. BTW, not sure if he's calling collect, but if he is, they charge a fortune on that. When I was in jail, I was limited to one phone call a week, collect, to my family.
Hugs and prayers,
Amy