Soulmates do not exist. Its just a modern idea lonely people adopt to keep themselves from feeling hopeless about their romantic futures. There's no evidence biblically, or in the world, to prove the concept, or even support it. I don't believe in the concept that there is 'the one' that is the only one that you could be in a good marriage and relationship with. I think it has to do more with compatibility and a willingness to make it work, and yes, having that 'connection'. What makes it difficult is finding all those traits in another person. It easy to find compatible people, or a person willing to work, or attraction, or connection, or any of the other things needed. But trying to find all of it in one person is the hard part.