The obstacle shows up as capriciousness. The person acts as they see fit even where something else was agreed — and does it not out of spite, but because they "felt like it".
It costs the people around them dearly: such a person is hard to rely on, and gradually they stop.
What it blocks is the capacity to be in a couple. Behind this point is someone who knows how to love and to build something shared, but self-will puts their own wish above the agreement time after time, and nothing shared ever comes together.
What to do: keep what you promised at the moment you no longer want to. That moment is precisely the obstacle point, in its full extent.
