I respectfully disagree based on the account of Isaac and Rebekah. Here, Abraham's servant departs in order to find a wife for his son Isaac. This was the servant's prayer when he arrived in the land:
And he said, "O Lord, God of my master Abraham, please grant me success today and show steadfast love to my master Abraham. Behold, I am standing by the spring of water, and the daughters of the men of the city are coming out to draw water. Let the young woman to whom I shall say, ‘Please let down your jar that I may drink,’ and who shall say, ‘Drink, and I will water your camels’ - let her be the one whom you have appointed for your servant Isaac. By this I shall know that you have shown steadfast love to my master.” (Gen. 24:12-14)
He requests a sign to both confirm God's approval as well as the specific woman whom He had chosen for Isaac. This happened to be Rebekah:
Before he had finished speaking, behold, Rebekah, who was born to Bethuel the son of Milcah, the wife of Nahor, Abraham's brother, came out with her water jar on her shoulder.... When she had finished giving him a drink, she said, “I will draw water for your camels also, until they have finished drinking. (24:15,19)
Therefore, the servant knew that Rebekah was the woman God intended for Isaac. By this example, I surmise that including God in your decision making - especially on an issue so serious as marriage - is wise and perhaps even essential.