Am I dreaming of my soulmate that I've never met?

A couple years ago I started to have dreams about a man I have never met.  I don’t remember what he looked like, only his smile and that I have to look up to talk to him.  Though, in my dreams I do somehow know his name, even though I don’t remember it.  In my dreams, he isn’t always my love interest, but he usually is. Every now and then he’ll even be in my nightmares.  Other times I know I’ve dreamed of him even though I don’t remember the dream itself.

Even though I have never met him, we always know each other, and we get along so well.  A few months ago, in one of my dreams/nightmares we actually slept together in the sexual since.  In the dream, it was a zombie apocolypse type of thing, weird as it is, and we ended up finding each other.  I returned with him to his camp, and we lived together there during the dream.  In the end we were seperated though and I died in the city.  When I woke up, I regreted never telling him goodbye.

In the dreams we aren’t always together.  Sometimes, he’s there even when I’m with my now-boyfriend in the dream.  What does that mean?