Answer: He often becomes annoyed with his mother's grumbles.
Explanation: Many times throughout the excerpt the tone is that of someone not agreeing with what is being said. " I was supposed to have it all, and in her mind that meant a nice quiet suburban town in California" This is meant as a "disagreement" but not necessarily that of importance enough for confrontation.
Tim manages to talk to Mr. Heron because Tim had to deliver rum to him. At that time, Tim set up a plan to deliver “business letters”, and he shared it with Mr. Heron. Mr. Heron agreed not to tell Life. The plan is to tell Life he is going fishing.