The website that quote came from, freerepublic, is an ultraconservative site, with some pretty far out links and info. I am myself a conservative, but these guys are somewhat to the right of Attila the Hun. The info came from their forums, not a news report, and the John Gibson who is quoted is a talk show host, not a journalist, with a reputation for controversy. I would take it with a large grain of salt.
Gilad was just 19 years old when he was abducted; he was in the middle of his keva army service. It is extremely unlikely that someone secular would be married that early and before he finished keva.