Genesis 18-20

Two people looked upon the destruction of Sodom. What they saw were two opposite events. In Gen 18:26 Lot's wife looked over the burning valley. She saw her life going up in smoke. Tears must have filled her eyes with the realization that all she had treasured was gone. Her heart did not overflow with gratitude for the mercy she had been shown. It seems that her heart was burning with sorrow over Sodom.
In Gen 18:27-28 Abraham looked over the burning valley. He saw God's judgment displayed in the smoke. Surely he also saw the answer to his prayer. Tears must have filled his eyes with the realization that there had not been 10 righteous people in Sodom. Verse 29 implies that Abraham's heart was filled with gratitude that God had rescued Lot from his judgment.
Two people looking at the same situations from opposite perspectives and desires. One walk away with faith in God built up. The other remains unmoved just as her heart refused to leave the center of her life.
Stuart