I struggle with this daily. This is what I'm supposed to do.
Matthew 5:44
44 But I say unto you, Love your enemies, bless them that curse you, do good to them that hate you, and pray for them which despitefully use you, and persecute you;
How about this from Romans:
“20 But if thine enemy hunger, feed him; if he thirst, give him to drink:
for in so doing thou shalt heap coals of fire upon his head. 21 Be not overcome of evil, but overcome evil with good.”