Its dated and probably misogynistic given the period, but when I did read it many many years ago, the broken record technique is probably the one thing I do remember. It also had some role play dialog for how others may try and break the loop. I found it helpful at the time.
I think I read/heard something similar in one of the Love and Logic parenting books/ebooks. "Maybe so, but <repeat assertion>" comes to mind. Acknowledge the statement that attempts to break the loop, don't add any new information, and repeat the assertion.