God does not damn men. Man himself is the one who refuses God’s merciful love and voluntarily deprives himself of (eternal) life by excluding himself from communion with God. [1036-1037]
God yearns fro communion even with the worst sinner; he wants everyone to convert and be saved. Yet God created man to be free and respects his decisions. Even God cannot comple love. As a lover he is “powerless” when someone chooses hell instead of heaven.