God created us for relationships -- so isn't it weird how easy it is for us to mess them up? It doesn't take much for harsh words (spoken out of hurt or fear) and misunderstandings (spoken out of ignorance or selfishness) to create distrust and doubt among family members or team members. And then we get so consumed with our own feelings, we fail to obey Matthew 18 by going quickly to clear it up. (Yeah, yeah, we're waiting for the other guy to come to us, I know.... right....)
That's why Christians need to function as peacemakers between friends and colleagues. Unity and peace in Christ is essential for God's "army" to march forward together, and squabbles amongst the troops are, well, unacceptable. When people are dying and going to hell, there's no excuse to NOT humble ourselves and give all we've got toward reconciliation and rebuilding of relational bridges. So whether it's your own battle, or someone else's -- step up and be a peacemaker. Jesus says that doing so might make others mistake you for Him .... for you will be called a "son of God."
Now, as Dr. Laura says, go do the right thing......
