But, seriously, back to the matter at hand. Meredith's husband has been battling MS for some time. *IF* he has taken the slightest turn for the worse, understandably, Meredith would want to free up her schedule and take care of him.
If "Millionaire" tapes on a relatively accelerated schedule (read: if all the shows are taped over a three- or four-month period), Meredith could easily still host "Millionaire" by day and return to spousal responsibility by night.