The answer
Our Lord Jesus Christ taught us to love every one even our enemies. He loved and forgave those who mocked Him, struck Him, whipped Him, spat on Him and finally crucified Him. This is the example our Lord has given us. We should differentiate between loving a person and accepting his actions. We should not love sin nor tolerate it. However, we should love the sinners and pray for them that they may know the truth and the right way and come back to the Lord. "For this is good and acceptable in the sight of God our Savior, who desires all men to be saved and to come to the knowledge of the truth" (1 Tim 2:3-4).As for Satan, he is evil itself. We are called to love the sinners but not evil. That is why we cannot love Satan.
Answered by His Eminence Metropolitan Youssef (opens in a new tab)