Mairead Philpott is telling the court that she tried to take her own life after her husband's girlfriend, Lisa Willis, left the family home.
"I thought if I was gone then everybody else would be happy," she said.
She also confirmed that she wrote the suicide notes and that they reflected what she was thinking at the time, but denied that she would contemplate killing her children at the same time as herself.
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Two other men missing on Scotland's hills this winter have yet to be found.
The decision was made after two Russian athletes failed drugs tests at the PyeongChang Games.
Sunday will be dry and largely sunny, although there will be some patchy cloud, mainly across eastern Scotland and eastern England.