people often take that to mean: what is free is worthless. what is unconditional is worthless. they didnt leave cos couldnt. cos dont know what a boundary is. or have poor insight.
yes pisces moons are prone to letting abusive dynamic endure. to them? if you ask: for deeper principle. or belief of some kind. possibly a delusional belief, often not, and some delusional beliefs make the difference between life and death for others, anyway.