She knew that simply living with a man was not marriage and Jesus verified it. God has spoken. All sexual relation ships are to be guarded by law. Any other arrangement is a sin and violates the woman's rights. Get married or break up.
Marriage can be embarrassing.
It may reduce our incomes. But it is using God's system properly. It can be a simple marriage, but make the relationship legal. After marriage, face the past violation of God's laws. Ask His forgiveness for this and all other sins.