You know, I don't think there is anything wrong with having a soul mate mentality. I think that the problem comes when people think they know what is best and forget that in all reality God knows what is best for each and everyone one of us. It has always been a belief of mine that God has one person designed for me to share life with. Similar to how Eve was created specifically for Adam, I believe that God created a person specifically for me and vice versa. It is simply a matter of when God brings that person into my life and says go. I think the problems that people have in their marriages have nothing to do with not being compatible. Do I think some people marry too hastily, yes, but I think that if God is the foundation of the relationship or there is a sturdy foundation established, two people can overcome obstacles that come up. I also feel it is important for couples not to get caught up in what they don't have, but to appreciate each other for who they are.
