Why do guys do this?!?!?

I ran into an old friends at a gas station and I gave him my email adress to get back in touch. Nothing bad, and he emailed me the first time and said. So are you still married or whatever. I said I am not married yet, but I am engaged. Then he emails me back asking how me and my family is. I said good. blah blah blah. Then yesterday I got an email from him, and he said so you can