I'm a firm believer that there is not a single person who seems to be the "missing piece". I'm amazed at the number of people I meet where I wonder "where have you been and why did it take so long for us to find each other?"
My wife and I have been married for 50 years and my wife likes to say, "We've liked each other for at least 20 years." At this point, I suppose she is my soulmate simply because she is the core to my family. When we got together, at 19 and 17, both of our families were broken and dysfunctional. So, we created our own family and, mostly, our extended family has been useless, destructive, or remote to our nuclear family: two daughters and, now, three grandchildren. I absolutely do not believe in the soulmate concept, though. You either modify yourself to match up to the person you're with or you don't.
I think 'SOUL" can mean different things to different people. Soulmates could mean simply a deepness of the connection between 2 people. Aretha Franklin was known as the queen of soul. And that brings up "soul music". A deepness and richness of the musical beat and deep down feeling that transports that understanding to others. I think if we simply use soul in the religious sense then we might be missing some cultural aspects that are very appealing. Soulmates, soul music, soul train, Sam and Dave; I'm A Soul Man, Soul To Soul. Just some food for thought.
I believe in chemistry between 2 people who also understand that when that wears off that it takes communication, work,respect and love to make a relationship work. And even then it's not going to be perfect but they still look foward to waking up next to that person every morning. For me, being "soulmates" is just finding the right combination in the world. There's lots of them out there and some can be duplicated, whether right or wrong. But then, what do I know? Lol
I met my soulmate when I was 17. We were apart for 45 years. I married someone else that was my love for 26 years. After that I met someone else that I will never get over. I can say that I think one of them was more my soulmate that the others but I don't know that it's true.
I don't believe in any such thing. I think "soulmate" is another made-up concept to either make us feel better, or inadequate if we don't find the "one".
I think it's all a crapshoot. I've learned there's really no such thing as Mr. Right Forever. However, there can be more than one Mr. Right Now (or varying lengths of time).