Tom,
He was probably just pissed because he didn't get design credit for Merion, and I'm sure it affected his cheerful, ebullient, exuberant countenance almost immediately, turning him into the sour, dark-spirited, angry, and sullen man he became later in life.
Thankfully, the record has been recently corrected.
(see, no smilies or winks...think anyone will get it?)