Why not just go and tell everybody you work for "FooBar Solutions" one town over? They don't have a website? Well we are early stage, just gathering money, so no time yet for a website. And you should have most people off your back.

Having experienced something like this with my last SO, I feel you though, OP. It's something that can stay on your mind constantly and is very worrisome at times. Hope you hid your tracks for good or he lost interest.