This is one of the hardest topics even for Christians, but Jesus did teach about it.
This question assumes a tension between God’s love and judgment. Yet Christianity teaches that God’s love and justice are not opposites but complementary. A loving God must also oppose evil. To ignore injustice would not be loving but indifferent.
Hell is not God delighting in punishment but honoring human freedom. Those who reject God’s offer of forgiveness choose separation from Him. C.S. Lewis put it well: in the end, there are only two kinds of people—those who say to God, “Thy will be done,” and those to whom God says, “Thy will be done.” Hell is the tragic consequence of rejecting the Source of life.
Moreover, God does not send people to hell without warning or provision. He sent His Son to bear judgment on the cross so that none need perish (John 3:16). Hell demonstrates the seriousness of sin, but the cross demonstrates the depth of God’s love.
Far from being incompatible, God’s love explains why hell exists—because He refuses to force people into relationship with Him. Those who desire life with Him have the way open in Christ. Those who refuse receive what they choose: eternal separation.