He's just suspicious about the motives of the intruder.
I wasn't ready to dwell on motives or feelings so I changed the subject.
It is not quite easy to see why he abandoned this successful policy in order to hasten on a war with Sparta, and neither the Corcyrean alliance nor the Megarian decree seems justified by the facts as known to us, though commercial motives may have played a part which we cannot now gauge.
Tne scurrilous motives which Aristophanes suggests for this measure can be entirely disregarded.
Unfortunately these genuine grievai~ces were taken advantage of by the Socialists for their own purposes, and strikes and disorders were sometimes promoted without cause and conciliation impeded by outsiders who acted from motives of personal ambition or profit.