What a good God that we have! His plans for us are what is good. He never wants us to suffer. He always plans that we should have a good life. When we submit our will to God, we should understand that what God is planning for us is what will profit us. God wants to give us the best.
Many times, out of our foolishness, we could think that we will be better off if we choose our path by ourselves. But this is a lie from the pit of hell. Satan uses that to deceive us. We can't be better off without God. We must follow God's choices and wishes in everything that we pursue.
God is the one who instituted marriage. He did that so that man will have a good life. It was His way of helping man to fulfill his purpose without hitches. But sadly, these days we choose to manipulate marital affairs by ourselves without God. Such an adventure won't give us the right partner.
What God prepares for us is a prudent wife and husband. He wants us to be married to prudent partners. There are those who are the seeds of the evil one because their hearts and their thoughts are evil. So, we must allow God to guide us when making marital decisions.