"But I say to you that listen, Love your enemies, do good to those who hate you, bless those who curse you, pray for those who abuse you" (Luke 6:27-28)
"And Joseph kissed all his brothers and wept upon them; and after that his brothers talked with him" (Genesis 45:15).
For most of us, it is easy to love those who love us. Affection tends to elicit affection in return. When my neighbor who lives on one side of us helps me on a project in our yard, in return I assist him when he needs it. The neighbor on the other side, on the other hand, is a different story. It's not that he is uncivil, but he his not overly kind either. He is more interested in being nosey over what I do with my yard instead of helping. When we see each other, we talk cordially, but neither one of us is anxiously waiting to assist the other. As I said, it is easy to love those who love us.