On the grounds that the Buchanans, Jordan Baker, Nick Carraway, and Jay Gatsby choose to go to New York City on a "cooking" day, Myrtle Wilson makes two false suppositions.
Above all else, there is a strain noticeable all around since Daisy and Jay Gatsby have started their illicit relationship and Daisy acts unconscionably by kissing Jay prior in her home. Maybe on the grounds that he speculates that something is going on.