What does the lieutenant do for/with Johnny? Why is Johnny puzzled about Lt. Stranger’s shifting behavior? From chapters 9-10

 Lieutenant Stranger offers to give Johnny and Goblin some lessons on how to jump using the hurdles set up in Boston Common. The lessons become a daily event, and Johnny admires Lieutenant Stranger’s riding skill and the fact that the lieutenant has never again tried to commandeer Goblin. However, he notices that Lieutenant Stranger will only acknowledge Johnny in private; he pretends he is above noticing Johnny when they see each other in the pub.