Book to do with staying or leaving?

[L0stinCyberspace]

I saw a recommendation for a book on an old thread a whole ago that was recommended if someone is contemplating fixing or leaving a relationship, which helped you analyse your motivations. Would anyone know the one?

There is Too Good to leave too bad to Stay by Mira Krishenbaum and Should I stay or should I go? by Lundy Bancroft

If recommended on here I imagine it was the Lundy one. I’ve read a couple of other of their books (not sure if LB is a man or woman!) and they’ve been really helpful for getting my head straight about dodgy relationships.

@SapatSea and @TheHouseIsOnFire thank you both very much.