Time Travel Relationships

What does it mean to travel through time and how does that affect relationships? Certainly there have been stories and films that have dealt with this question, but is there a definitive answer?

In the blog “Only Fools Tread Where the Wise Fear” by moleboi he posts, “The Ethical Dilemmas of Time Travel … Relationships” which is a delightful, thought-provoking examination of what considerations should be considered with regards to relationship and time travel.