Our natural instinct is to do unto others as they do to us. However as believers, as Christian's, we are called to a higher calling and within that calling is love. So how do we love the unlovable? How do we return good for evil?
By allowing the love of Christ to flow through us, and applying the fruits of the spirit while simply being Christ like. The key is not to become offended.
In His Glorious Name Ministries Online