Alison Parker separates from Jake Hanson after their honeymoon due to a series of personal and relational issues. During their honeymoon, Alison realizes that she and Jake have different life goals and values. This realization, combined with ongoing trust issues and unresolved conflicts, leads Alison to conclude that their marriage is not sustainable. This decision reflects her desire for personal growth and fulfillment, which she feels she cannot achieve while staying in the marriage.