What mood is Icabod in when he leaves Katrina's house and give the evidence of that mood ?What does the author think happened to change his mood?

Icabod leaves the house ''with an air quite desolate and chopfallen.’’  Just prior to this, he has been talking to Katrina, whom he has approached with the plan of asking for her hand in marriage.  We can assume from this that Katrina has turned him down, which leaves him feeling so desolate, so dejected.