Twin Flame Separation Signs and Triggers - Is Your Twin Flame Getting Ready to Run?

Twin flame relationships experience ups and downs just like that every other relationship. These ups and downs can include a period where the couple separates. These periods of twin flame separation can be excruciatingly painful, and often lead to one becoming a runner, and the other a chaser. But why do these separations happen in the first place? Is there any way to see one coming?