Hmm..I read her answer to "how does he feel about no children?" And she answered "our families are both very supportive." Not, "oh, he doesn't want any either."
Maybe he doesn't want any, but I'm not sure he wasn't just agreeing with her.
She may very well not want any, ever, but people can change their minds on stuff like that later, too. (My daughter swore no kids for her..ever! Now she has 3.)