How would you say "(when)it comes to the point that..."?

Question

I'm trying to right this sentence in an essay that starts with "when it comes to the point that couples have had enough of each other" and I have absolutely no idea where to start.

Answer 1

I would say "Cuando llega el día de que ......................."

Answer 2

I cannot exactly answer that question and, as an intermediate Spanish speaker, you are well ahead of me but, when you think about it, even though the phrase "when it comes to the point" is used, the only really operative word in that phrase is "when". Maybe trying to translate an English phrase is not the right approach. Maybe simply "cuando"?