Maybe, but...dumb as a box of rocks he may be, Chris has learned a little over the years - including (though not infallibly) how to spot 'da trolls'. The Idea Guys flattered him, which was their 'in' - but Helena isn't flattering him much. He may yearn for her sweet, sweet china, but her constant harping on points which people have been laughing at him for for years must surely ring some tiny warning bell as the cranial clockwork mouse stutters ever on its track? That 'oh I love you playing your Guitar Hero controller' must make it obvious even to such a slow-in-the-mind that she's at the very least not entirely on the level.