Getting out of an abusive relationship can be hard and even dangerous. There is help available, however, none of the resources listed here replace the help of a qualified psychotherapist. Most do not advertise help with RTS (Religious Trauma Syndrome, yes its a thing), however any solid therapist is trained to recognize abuse and trauma.
Warning Signs: Am I in a cult?/Am I a cult leader?
Journey Free: Online RTS support group
Recovering From Religion This website has a wealth of resources, including a Hotline and Live Chat, when you need to talk to someone who understands RIGHT NOW.
ExChristian: Forum for reading stories from survivors and online chat. Best feature: write and submit your own story! The regular members will give positive feedback, emotional support and invaluable advice. Trolls, be warned: they will have you for lunch.
Leaving the Fold by Dr. Marlene Winell Ph.D.
Trusting Doubt by Dr. Valerie Tarico Ph.D.