Naive not naiive. :-/
Either way, I’ve never seen any indication that there was any love lost between the Bushes and Hillary. The friendship with Bill I get; the Bushes are clubby Bill is a former Predident, while Bill’s always aspired, pretty pathologically (due to his messed up upbrining) to be part of the country club in-crowd.
This is actually exactly the sort of comment that would make Bill laugh, but Hillary boil over. And I could definitely see Bush delivering it for precisely that effect.