It's just a weird statement to make either way.

- Just because you say you are not interested in sex, does not mean you aren't having sex or having lots of it.

- "They are no longer interested", when were they? when was anybody?

- Do they mean completely uninterested? Or just less of a priority?

All statistics aside, what does it even mean to not be interested in sex? Not chasing sex? Pure abstinence? No casual sex?