 As to time spent on one's career, there are no rules about how many hours one should or shouldn't work. This can change from day to day, week to week, month to month, or job to job. Every couple has their own personal needs in unique contexts regarding the amount of time spent together. For example, if a partner has been called up for active duty in the military, then obviously the context is important and long periods of time without one another may be unavoidable.