This is about being married, but also talks extensively about how churches can support and defend abusers both among the congregation and within its power structures. I got a lot out of it.
“Is It Me? Making Sense of Your Confusing Marriage: A Christian Woman's Guide to Hidden Emotional and Spiritual Abuse” Natalie Hoffman
https://www.amazon.com/dp/1732894302/ref=cm_sw_r_cp_awdb_imm_t1_3uBbGb3408ZSS
https://www.amazon.com/Making-Sense-Your-Confusing-Marriage/dp/1732894302 They all need to read this book!