From the rule book (F&JG - 37):

c) Opposite rolls may be either of the same or different type. In
opposite rolls, the tips of the symbols are drawn on opposite
sides of the line, indicating they are to be flown in opposite directions
of rotation. The pilot may elect to fly the first roll in
either direction, but the second roll must be opposite direction to
the first. Opposite rolls, including those in rolling turns, should
be flown as one continuous maneuver - the brief pause between
opposite rotations should be minimal (Fig. 52). If the two rolls
are of the same type, they must be flown in opposite direction if
they are not linked.

So the answer is yes, there is a pause, but there is NOT a line between them. Think of it as a momentary hesitation.