1029.8.61.5.2. If, at a particular time in a taxation year, two eligible individuals who are spouses cease to live together because of a breakdown of their marriage and their separation lasts for a period of at least 90 days that includes the particular time, the aggregate of all amounts each of which is an eligible expense made by either eligible individual in the period of the year preceding the particular time and in which they were spouses may be apportioned between them in such manner as may be agreed by them or, in case of disagreement, as the Minister may determine.