He has no drinking vessel with him, so he is ready to drink from hers. The infinite, true God cannot be our God unless we give up the job. Of course we abhor loss and senseless suffering, but we have to remember who is God, that God has created the world and allowed humankind free will. If I expect God to intervene and to protect me from the consequences of my own and others' behavior, that is the height of wishful thinking, not true prayer. If I expect God to act according to my rules, then I am trying to reverse the right order.
Right relationship is foundational to authentic spirituality.
Trust that God's will for us is good, far beyond our comprehension, or even our imagination. When we pray for healing, rather than focusing on relief or a cure, we have to let God define the healing, trusting that God cares about the whole person. The story of the woman at the well is illuminating. She is preoccupied with the physical need for water and the work of drawing water from the communal well each day. He understands her, but she does not grasp this concept of living water.