Unmarried boy saying that he divorced his wife

If any unmarried boy said that he divorced his wife (3 times). He meant that, if at that present time he had married a specific girl (one of his cousin's sister in law) then only that girl is divorced. He thought, he mistakenly married that girl (one of his cousin's sister in law).

Actually, he understood later that, that was not a marriage. It was his over thinking. That boy never thought of divorcing any other girl or his future wife while utturing those words. That boy did not even know, that there is a possibility of divorce before marriage.

Now, after around 12 years that boy/man wants to marry another girl. Is there any issue? Will those words be effective?