The tumultuous part happens because you meet them when you’re both carrying unhealed baggage. Every wound you’ve been ignoring gets shoved right in your face through their behavior and your reactions to it.
Separation isn’t punishment. If you’re separated from your twin, you’ve won the lottery because Spirit deemed you ready for this level of transformation and they’re already so incredibly rare. The separation itself is the greatest opportunity for soul growth available. Still hurts though.