A reader writes to the Ethicist column seeking advice on managing tensions in a politically divided marriage, especially with an upcoming houseguest who may be affected by the spouse's provocative views. The Ethicist suggests that the deeper issue is not just political differences but a lack of courtesy and willingness to compromise within the marriage, recommending counseling and suggesting the guest stay elsewhere to avoid discomfort. Another reader asks about the ethics of applying for a job a friend is also seeking, with the Ethicist affirming that transparent and good-faith actions are not a betrayal. The column also revisits a previous discussion on the ethics of buying property in a gentrifying neighborhood, emphasizing that individual choices matter less than how one participates in the community, and includes a range of reader responses on the complexities of gentrification, affordability, and displacement.