In Genesis 25 and 26, there is recorded for our benefit a terrible example in parenting and family life: the story of Isaac and Rebekah. They played favorites with their children, pitted their favorite children against the other spouse, and brought division and bitterness in the midst of their family that lasted for the rest of their lives.
Perhaps Isaac could have asked himself, "Was Rebekah really the right choice?" And Rebekah might have asked the same about Isaac. Here's the truth, however: nowhere else in Scripture, except perhaps with Adam and Eve, do we have a clearer record of God choosing a mate. Remember the process that Abraham and Eliezer went through in Genesis 24 to secure God's choice of a wife for Isaac? Clearly, Rebekah WAS the perfect wife for Isaac.
Here is the point: don't let current difficult circumstances 'rewrite' history until you can manipulate yourself out of working things out with the wife that God has given you - 'until death do us part." Take the place that you are now, and refine it with God's help until it becomes perfect again - the way God intended it to be.
Genesis 24:48-52, "And I bowed down my head, and worshipped the LORD, and blessed the LORD God of my master Abraham, which had led me in the right way to take my master's brother's daughter unto his son. (49) And now if ye will deal kindly and truly with my master, tell me: and if not, tell me; that I may turn to the right hand, or to the left. (50) Then Laban and Bethuel answered and said, The thing proceedeth from the LORD: we cannot speak unto thee bad or good. (51) Behold, Rebekah is before thee, take her, and go, and let her be thy master's son's wife, as the LORD hath spoken. (52) And it came to pass, that, when Abraham's servant heard their words, he worshipped the LORD, bowing himself to the earth."