Here at enotes only one question may be posted at a time; therefore, the first one has been addressed:
Firmly entrenched in the middle class of Zenith, the Babbitts have a party to celebrate George's successful, albeit corrupt, business gains. The party is less about entertainlng friends than it is about showing off George's success. Lewis writes,
Babbitt was fond of his friends, he loved the important of being host, and shouting, "Certainly, you're going to have some more chicken--the idea!"
However, it is not long before the guests begin to wear on Babbitt, for "there was no magic in his friends." He finds himself dreaming of going to Maine where he can go outdoors and experience nature alone, away from his unsatisfying life with his wife. He pictures himself with Paul there beside a "tranquil lake of evening." This dream is as "overpowering and imaginative as homesickness." Clearly, Babbitt wearies of his tedious materialistic life that measures everything in terms of financial gains and social status.