In marriage a man leaves his family home and he and his wife unite and become one flesh. They are joined together, bound, yoked together, until one of them dies.
That is the way it is.
Remember yesterday when We read in Proverbs 3:5 that God is absolute and it doesn't matter if we understand His ways or not, what is does and says is Truth? It is the same way with marriage. God sees "one," no longer two. And no matter if you change, if your relationship changes, if your circumstances changes, God still sees just one.
Marriage is not to be entered into lightly or on a whim. This is the person that, in God's eyes, will truly be your other half. Choose well. Choose wisely. Make it work.
So they are no longer two, but one flesh. What therefore God has joined together, let no man separate." (Matthew 19:6 NASB)