In a flying star reading, a transformation may start from the Career Palace and land in the Spouse Palace. The first describes a possible source of pressure; the second tells you where it may be felt. It does not prove a relationship will fail.
Consider an engineer assigned overnight support across time zones. Ask who controls the rota and whether the couple has agreed on childcare and rest time. Read the Spouse Palace structure as a separate layer. A three harmony reading emphasizes stars and supporting palaces; a flying star reading emphasizes the path from source to destination. Keep the school's tables consistent, then discuss actual schedules and responsibilities with the people involved.