What does the boss suspect is going on when George won't let Lennie talk

The boss thinks that George is taking Lennie's money (selling him out). He thinks this because George won't let Lennie talk. He lies and says they're cousins and that he promised his "old lady" that he would look after him. He keeps a glove full of Vaseline on it to keep it "soft" for his new wife.

Answer: hmm