What does it mean when he says if it works out, it works out if it doe not than it does not?

We have been together for 3 years. I left due to problems that we had in march and went back to my state. He now wants me to move back with him having a female roommate and is scared of the relations. I am also scared that things will go back. He did not bother to call me yesterday after a boat ride because he was tired he used similar excuses during the week end