A floppy relationship triangle exists when the man in question is at the apex of that triangle and the two women are represented by the other two points.
Each woman is connected to the man but they are not usually connected to each other. The gamut can run from two women who have known one another in the past, even possibly friends, to total strangers who are now connected to each other only by being attached in some way to the same man.
Triangles are stable when all three legs are connected.
What that means in a three-way relationship is that each day is securely connected.
Committed partners who still care deeply for one another, on the other hand, often separate because of external stress, worn-out interactions, infidelities, or a slow drift-apart that neither realized could have ended up in a separation.
Those drifts can come from so many causes: illness, financial strain, too many obligations without reward, personal insecurities, stages in life that produce self-doubt, boredom, neglect, too much hostility without reparation, or just plain growing apart.
Relationships that are new have not had the time for enough negatives to accrue that can outweigh the reasons to stay together.
Floppy relationship triangles are essentially unstable and the outcomes are not only unpredictable, but often dire.
There are many factors that can affect these triangulated relationships, and how they are combined can affect the outcome in different ways.
Long-term commitments are filled with attachments to meaningful experiences, people, material goods, and history that may go beyond the loss of personal intimacy.