Why does my ex always call and ask these questions?

He always calls and sometimes asks like if I'm living with anyone or moving in with anyone or if I'm at home at the moment. He always seems to linger on the phone also, like he wants to keep talking or doesn't know what to say next. And he will call, we'll talk and THEN I check my email and he had already sent me an email talking about what we had just talked about at the exact time that he called in the first place. So why does he do this?