I suspect when someone wrongs us or acts in a manner that is so offensive that we become distant to that individual for obvious reasons. Often times, we do everything possible to avoid any potential confrontation or opportunity to discuss how we really feel, getting to the root cause of the issue between the two parties. 

When we love our enemies, we often find that a greater love and peace will come into our lives for venturing out into a situation of vulnerability that we don't usually reach to ascertain. 

Because one is measured by what's in his/her heart. By acting passively, with greater love, understanding, patience and tolerance we strive to be closer to the LORD and his guiding principles. 

Hostility, anger and retaliation are all feelings that stem from an evil thought or origin. JESUS doesn't want us to be robbed of the joy the LORD blesses us with daily. This is why he led by example and taught us in the following manner.