Rick and Morty finale topic (spoilers, none in the first post)

Board 8

So can someone explain Rick's backstory to me? I know in the season 3 premiere we got the dead wife/daughter revelation that was played off as a fake memory to escape, but now that it's real, does that mean Rick actually cloned Beth? It's the only explanation I can understand because both Rick and Morty were referred to being from the C-137 dimension (which obviously got Cronenberged).
TheRock ~ I had a name, my father called me Blues.