Its hard to say if he will contact you again or not. Its likely that after a certain amount of time goes by, the person moves on, invests in other things/people, etc. If you guys had mutual contacts, he may have very well found your new information through that. With the internet it is very hard to have a lot of privacy these days.
HOwever, I would suggest that if he contacts you again, to simply tell him not to contact you again. Sometimes people are receptive to this in that many people like "the chase".