This continued self-denial can only be explained upon the hypothesis that he desired to have his men know that he shared their privations to the very last.
This was perfectly in character with Lee.

Throughout the War, we learn from Colonel Taylor's book, the general used the army ration, and lived the army life.

He would not take up his quarters in a house, because he wished to share the lot of his men, and also because he feared that, in the event of the house falling into the hands of the enemy, the very fact of its having been occupied by him might possibly cause its destruction.

It was only during the last year of the War, when his health was somewhat impaired, that he consented sometimes to vary this rule.
Lee's chivalrous nature is well shown forth in his famous General Orders, No.

73, issued at Chambersburg, Pennsylvania, a few days before Gettysburg.
After congratulating the troops on their good conduct the general continued as follows: There have, however, been instances of forgetfulness on the part of some that they have in keeping the yet unsullied reputation of the army, and that the duties exacted of us by civilization and Christianity are not less obligatory in the country of the enemy than in our own.
The commanding general considers that no greater disgrace could befall the army, and through it our whole people, than the perpetration of the barbarous outrages upon the unarmed and defenseless, and the wanton destruction of private property, that have marked the course of the enemy in our own country.
Such proceedings not only degrade the perpetrators and all connected with them, but are subversive to the discipline and efficiency of the army, and destructive of the ends of our present movement.