#2 Take it at face value. When you still can’t figure out what his reasons are for not wanting to be in a relationship with you right now, the safest thing to do is to simply take his words at face value. He says he can’t be in a relationship, and maybe he can’t tell you when he’ll be ready.
A smart move is to move on with your life and enjoy it, with or without him, free of expectations. The tricky part is to make sure you do not get too attached and just enjoy your time together while it lasts. After all, maybe that’s the kind of relationship you need too.