Miskatonic
Auror
Not only do I disagree about it being a falsehood, I feel that calling it such is belittling the labour that the people involved in these healthy for-life marriages put into their relationships to keep them healthy and for-life.
There's a big difference between disagreements, spats, or other forms of confrontations that lead to a heated argument, and events that lead to people actually separating from each other.
My parents may have had arguments every once and awhile, or got on each others nerves, but it was never to the point where they considered living separately.