An observer anywhere sees space type things moving away (because the universe is expanding) towards a POINT exactly on the other side of the universe from the obvserver.
They never collide at this point because the universe is expanding just enough so that does not happen.
As objects move away the gravitational force dragging them back gets less and less
(faster than inverse square) because the same G source is attracting them from the other direction all the way around the universe.
Halfway around, the forces are equal but in opposite directions so cancel exactly.
The objects are not being pushed away from the observer by DARK ENERGY.
They are attracted away by gravity that has gone more than half way around the universe.