"There is nothing more pleasing to God, than to see a soul who patiently and serenely bears whatever crosses it is sent." St. Alphonsus Liguori

God doesn't enjoy seeing us suffer. That would be contrary to his very being, who is love. Through our trials and temptations, our struggles and afflictions, what pleases God is our remaining one with him. It is not pain that pleases the Lord, but our obedience and steadfastness in spite of the pain and suffering. The Father did not take delight in Jesus' agony on the cross but in Jesus' obedience to the will of the Lord.  We can not avoid the sufferings of life, but by keeping our eyes fixed on the Lord, the Perfecter of our faith, we can unite our sufferings to his. This is what is meant by redemptive suffering. Jesus saves. We, through uniting our sufferings and trials to his, share more fully in that redemption.