To cut your losses means to leave a failing situation before it gets worse, but the sentence suggests continuing trying in a failing situation
Context: I thought it was ridiculously dumb-i mean, why not continue trying in a failing situation after the first fricking divorce?.
Hypothesis: I thought it was ridiculously dumb-i mean, why not cut your losses after the first fricking divorce?

Given this context, is the hypothesis true (Yes/No/I don't know)?