Tiger/Aquarius and Monkey/Aries meet at 54-59%, a cross pairing with enormous energy and no brakes. The Tiger's perpetual busywork and the Monkey's nonstop chatter fill every hour, and somehow nothing gets finished.
The spark is instant: Monkey/Aries can talk to anyone about anything at high volume, and Tiger/Aquarius, a bustling ball of cerebral energy, is delighted company. Both love motion for its own sake. The trouble is that canon says each needs a calming partner, and neither of them is one.
Monkey/Aries talks; Tiger/Aquarius bustles; volume substitutes for landing anywhere. The Monkey never learned to sit down and keep quiet, and the Tiger keeps inventing unproductive projects to narrate, so conversations are vivid, circular, and rarely conclusive.
Friction comes from mutual restlessness: two easily bored people can bore each other spectacularly. The Monkey's quest for distraction collides with the Tiger's self-made busyness, and shared logistics, bills, plans, repairs, become the casualty everyone resents.
If it works, it is because each finally sees their own habit from outside. Monkey/Aries learns quiet observation watching the Tiger spin; Tiger/Aquarius learns to cut the extracurriculars and actually relax with someone entertaining.
At 54-59%, Tiger/Aquarius and Monkey/Aries are mismatched but possible. Terrific fun, thin ballast; it survives if one of them volunteers, even part-time, to be the grown-up.