There are 5 things we should never try to do in relationships: change; cure; control; compare or connect with others in unhealthy ways. I believe that eighty percent of all relationship problems occur because one or more of these principles have been compromised.
Romans 12:18 If it is possible, as much as depends on you, live peaceably with all men.
Ephesians 4:29 Let no corrupt word proceed out of your mouth, but what is good for necessary edification, that it may impart grace to the hearers.