The way 'White Rose' handles Blake and Weiss isn't just about opposites attracting, it's about deep, often unspoken, ideological friction turning into mutual reliance. Weiss, for all her growth, carries the structured, rule-focused, sometimes rigid worldview of someone raised to lead a corporation and a kingdom. Blake's entire journey is about tearing down oppressive systems, acting on instinct and emotion, often outside the law.
In fanfics I've read, the best ones don't soft-pedal that. They let Weiss be genuinely frustrated by Blake's 'reckless' methods, and Blake finds Weiss's initial caution suffocating. The magic happens when Weiss starts to see the necessity of Blake's fire, and Blake begins to appreciate the strategic, lasting change Weiss's kind of discipline can build. It's less a fluffy romance and more a political alliance forged in personal trust. Their contrasting traits become complementary tools.
That tension is way more interesting to me than any surface-level 'ice princess meets rebel' dynamic. It forces both characters to evolve in directions the show only hints at.