Learning to Love

I have just returned from 2 weeks of vacation which included visiting family and friends. Relationships are so important. As I reflect, I know that I have had wonderful relationships with some people over my 61 years. Yet there have been others with whom I have no desire to see again. It makes me ask myself a question. Why do I love certain people and not others? Scripture mandates we love others. Its the mark of Christianity to the unbelieving world (John 8:31,32). Yet I still find it hard to love some people. How do I learn to love those who irritate me, confront me, or don't give me the attention/respect that I think I deserve? I must love them because my God loves them. How do we learn to love others?