Within God’s Law, relationships are easy. Initiating them is easy and keeping them healthy is easy. Why? When everyone knows and obeys God’s Law there is harmony and peace. Seeming conflicts are easily resolved and just become avenues for greater understanding. When someone falls outside of God’s Law he or she is easily restored and is better off for it.
This is all not only possible, unlike the impossible promises of peace and prosperity from the world, and true, unlike the lies of the modern day Pharisees, but inevitable if we are bound by the LawWord of God through faith in the power of the resurrection of Christ, faith given to us by the work of the Holy Spirit.
Out in the world we may be as sanctified as ever but we can still have failed relationships with people in business or in some public venue, even in church, although hopefully somewhat less there. But when it comes to marriage we must be sure not to marry those who live by some other law or principle or center than God's LawWord, with Christ as our center.
Thus, given the context of God's Law, of heartfelt theonomy, there is no possibility of broken relationships, but only ever greater maturity and understanding.