Abraham 2

As Abraham is about to enter Egypt, he tells us -

"...I, Abraham, told Sarai, my wife, all that the Lord had said unto me—Therefore say unto them, I pray thee, thou art my sister, that it may be well with me for thy sake, and my soul shall live because of thee."  (Abraham 2:25)

I think Sarai knew this would be a great trial to save Abraham's life.  Elder Bruce R. McConkie comments -

“The Lord never sends apostles and prophets and righteous men to minister to his people without placing women of like spiritual stature at their sides. Adam stands as the great high priest, under Christ, to rule as a natural patriarch over all men of all ages, but he cannot rule alone; Eve, his wife, rules at his side, having like caliber and attainments to his own. Abraham is tested as few men have been when the Lord commands him to offer Isaac upon the altar (Gen. 22:1–19); and Sarah struggles with like problems when the Lord directs that she withhold from the Egyptians her status as Abraham's wife.… And so it goes, in all dispensations and at all times when there are holy men there are also holy women. Neither stands alone before the Lord. The exaltation of the one is dependent upon that of the other” (Doctrinal New Testament Commentary, Vol. 3, page 302).
Ridges, David J. . The Pearl of Great Price Made Easier (The Gospel Studies Series) (Kindle Locations 3475-3481). Cedar Fort, Inc. Kindle Edition.

I feel much the same in my own life