It's not just missionaries who have conflict. It's a part of all of our relationships, some more than others. Here are some more links with things to consider.
From a Life Overseas:
When Envy Rots the Soul
Plays Well With Others
I think I'm just gonna start calling it "Missionary Survivor"
Friend of Missionaries alternately titled "Missionaries are like Manure"
And a few more:
Do I want to make peace or progress?
1 Good Reason to Gossip-- and 5 Better Reasons not to
Three QuestionsYou Must Ask Before Reacting