I don't see where his wife is a gold digger. According to the article, he's fallen for repeated scams and, the way they work is that once you've fallen for one scam, they sell your information to other scammers as an easy mark. As her spouse, he probably has access to all her money; if they get divorced, she'll at least be able to protect her half of their assets.

[Notice that it doesn't say his wife wants to leave him, just get divorced.]