I think many people may be missing the point…
Getting married affects much of a person’s life on this world.
For these types of things we are better off leaving it all in the hand of He who knows who is best for us.
Many people do excessive inquires (read: investigations) come with lists, images in their minds and the feeling that THEY will find the one that they are looking for…
But that is the best way to find the wrong one.
If a person tells Hashem “I can handle this one alone, I know what I’m looking for and I’ll find it”
Hashem says “Have it your way” and allows one to be misled by his own senses possibly marrying the one that was not destined for him (Together with the consequences that accompany such a situation)
The right one is already lined up, we just have to allow Hashem to guide us to Him or Her.