One partner is and has always been the sole breadwinner.
Other is a stay at home parent who as the children have gotten older has gradually had more free time during the day.
They always share the household chores equally.
When the children go to University, the stay at home parent has said they will be retiring and ‘they can’t wait’.
The partner with the job has at least another 15 years of work to do (and all their retirement funding will come from this partner’s investments, or investments set up in the stay at home parent’s name that were set up and funded by the working partner).
Is the stay at home partner being reasonable to declare their job is completed when the children are 18, even if the other partner has another 15 years of work to do?