Yes; he would sacrifice himself.

As he had been induced to pledge his word, he would not go back from it.

He was too much of a man for that! But had he not been wrong to refuse the result of Lily's wisdom when she told him in the field that it would be better for them to part?
He did not tell himself that he had refused her offer merely because he had not the courage to accept it on the spur of the moment.

No.
"He had been too good to the poor girl to take her at her word." It was thus he argued on the matter within his own breast.

He had been too true to her; and now the effect would be that they would both be unhappy for life! He could not live in content with a family upon a small income.