I have a personal interest in this, hence the name change.
It seems such an unimaginable upheaval to family life, to the kids (I write as a child of divorced parents), to finances.
AIBU to ask what, for you, meant that you ultimately chose not to stick it out until the kids had grown? Infidelity, abuse, being left by your partner not through choice are all pretty clear-cut, but what about other reasons too? (I'm not judging btw)