Life is not fair. People are not all born into the same set of circumstances. Some are rich, some are poor, some have loving families, some of dysfunctional families. Nevertheless, as a Christian, I know that there is a reason why I am in the situation I am in: God wants to use me as a testimony and encouragement to others around me.
Sometimes people try too hard to get out of the circumstances they are in. Yes, there are times to flee: to flee from our families, to flee from our oppressors, but more often than not we need to stay where we are. God has a reason for us to be there, to serve others and to help others, even if they themselves are not perfect. God is praised when we Christians sacrificially give of ourselves to help others. This is why, generally speaking we Christians are not supposed to flee from our circumstances and the responsibilities that come with them:
Brothers and sisters, each person, as responsible to God, should remain in the situation they were in when God called them (I Corinthians 7:24 NIV).
Paul is saying here that new believers, should not immediately flee from their circumstances the moment that God calls them (that is the moment they turn to faith in Christ). Rather, they still need to tend to the social and familial responsibilities that they had before they became Christians. Their past relationships are not immediately dissolved; they need to continue to honor previous commitments.
Now, this is a general rule. Paul Himself gives exceptions to this rule in this very passage. He has already stated that a believer is not to initiate a divorce with their unbelieving spouse (I Corinthians 7:10). They are, however, permitted to leave their spouse if their spouse himself initiates a divorce and refuses to remain married to them (I Corinthians 7:15). Likewise, someone who is by law a slave ought not to run away from his master (I Corinthians 7:20). But if there is a way for him to legally purchase his freedom, he should do it (I Corinthians 7:21).
The point here, is that we should not strive too hard to be free from our obligations to others, especially if the price of our freedom is violence and deception. Rather, as Christians we should honor our commitments to others as a way to show them that we love them, and thus provide a testimony to them that we are changed people. Let us live for God and for others, and not for ourselves.