Jehovah's Witnesses Marriage?

the innocent mate can remarry,

What the Bible’s view is regarding divorce with a view to remarriageMal. 2:15, 16: “‘You people must guard yourselves respecting your spirit, and with the wife of your youth may no one deal treacherously. For he has hated a divorcing,’ Jehovah the God of Israel has said.”Matt. 19:8, 9: “[Jesus] said to them: ‘Moses, out of regard for your hardheartedness, made the concession to you of divorcing your wives, but such has not been the case from the beginning. I say to you that whoever divorces his wife, except on the ground of fornication [extramarital intercourse], and marries another commits adultery.’” (So the innocent mate is permitted, but not required, to divorce a mate who commits “fornication.”)Rom. 7:2, 3: “A married woman is bound by law to her husband while he is alive; but if her husband dies, she is discharged from the law of her husband. So, then, while her husband is living, she would be styled an adulteress if she became another man’s. But if her husband dies, she is free from his law, so that she is not an adulteress if she becomes another man’s.”1 Cor. 6:9-11: “Do not be misled. Neither fornicators, nor idolaters, nor adulterers, nor men kept for unnatural purposes, nor men who lie with men . . . will inherit God’s kingdom. And yet that is what some of you were. But you have been washed clean, but you have been sanctified, but you have been declared righteous in the name of our Lord Jesus Christ and with the spirit of our God.” (This emphasizes the seriousness of the matter. Unrepentant adulterers will have no part in God’s Kingdom. Yet, people who formerly committed adultery, perhaps even improperly getting remarried, can gain God’s forgiveness and a clean standing with him if they are genuinely repentant and exercise faith in the sin-atoning value of Jesus’ sacrifice.)

HOW CAN YOUR FAMILY BE HAPPY? ..1 WHY IS MARRIAGE VITAL TO FAMILY HAPPINESS?.. The good news comes from Jehovah ,the happy God, who wants families to be happy. ( Timothy1:11) He originated marriage. Legal marriage is vital to family happiness because it provides a secure environment in which to raise children. Christians should respect local laws concerning the registration of marriage.- Read Luke 2:1, 4,5. How dose God view marriage? he wants it to be a permanent union between a man and a woman. Jehovah wants husbands and wives to be loyal to each other. ( Hebrews 13:4) He hates divorce. ( Malachi 2:16) But he dose allow Christians to divorce and remarry if their spouse commits adultery.- Read Matthew 19:3-6,9. For more information JW.ORG

They do say that the only ground for divorce is sexual infidelity, so that if a person was divorced due to the other person's adultery, re-marriage is okay. However, if a person was divorced because they had committed adultery, then they could not remarry in God's eyes. The couple you know must both have been innocent parties in their respective divorces. I personally knew a full-time Special Pioneer who married a fellow JW whose wife had left the religion. The assumption was that the ex-JW wife would then have had a sexual relationship with another man, thus 'freeing' the JW man to remarry another JW. But it's never a good idea to assume anything with JWs. They automatically change their beliefs and practices at the drop of their Governing Body's hat. No questions asked.

The Bible does permit divorce. However, Jesus identified only one acceptable reason to end a marriage, stating: “Whoever divorces his wife, (or wife divorces her husband) except on the ground of fornication sex outside of the marriage, and marries another commits adultery.” Matthew 19:9.

At the same time, the Bible allows for divorce and remarriage on one ground, sexual relations outside the marriage.

Uncle married a J and W she got sick and died because she would not take blood 

Jehovah's Witnesses adhere to God's word on the matter, if there are Scriptural grounds for a divorce than the person can remarry. If there were no Scriptural grounds for the divorce than the person if they remarry would be committing adultery according to the Bible and adultery is reason for disfellowshipping.If a spouse commits fornication or adultery, the spouse harmed by such an act can seek a divorce with Scriptural grounds and could remarry. These are the only Scriptural grounds for a divorce where the harmed mate could remarry. 

It is very strict religion.

That's between you and God everyone else needs to stay out of it