Ex has moved onto someone new, but still contacts me regularly?

We've been broken up for a few months and he's the one who broke up with me. I don't see myself ever wanting to be in a relationship again with him, but I know he's talking to and hanging out with someone new and has been for the last couple of months, but he still contacts me about once every week (sometimes more often & after about a month of no contact--which was put into place by me) and most of the time seems more interested in asking how I'm doing and what I'm up to and asking more detailed questions about that then offering up information about what he is doing in more detail when I return the same questions to him. Is he just keeping tabs on me? trying to be friends?