There is an article on Christian media site titled: 10 Signs You Married the Wrong Person.
As a christian, this title angered me because it is the sort of thing that festers doubt in the minds of people.
Here is the truth – the moment you said “I do” your spouse just became the right person. It is the will of God for you to love and cherish your wife or husband. Christians have to stop playing guessing games with the will of God.
Christians also have to stop attempting to spiritualize everything – as if God needs to tell them their every move. God will guide us when we need his wisdom, but sometimes we just need to make good decisions based on the Word of God.
Allow me to elaborate.
Many Christians have the unscriptural idea that God has a specific person for them and they must find that specific person in order to marry according to the will of God. This kind of thinking can lead people to think “I married the wrong person” when difficulties arise in their marriage. And when a person has such doubt they sometimes confide in people who will work against their marriage rather than for it. And that is not a good thing.
Unless it is the rare occasion that you are specifically called to be the earthly parents of the Son of God, God does not have only one specific person he wants you to marry.
In 1 Corinthians 7, the apostle Paul, addressing the topic of marriage, says the following concerning widows:
The wife is bound by the law as long as her husband liveth; but if her husband be dead, she is at liberty to be married to whom she will; only in the Lord. ~ verse 39
Notice that Paul does not say she needs to wait for the specific man God wants her to marry. He says she is free to marry whoever she wants to, but only in the Lord.
Only in the Lord means marrying a believer.