Rival Hearts

For as long as Rajesh Koothrappali can remember, Evelyn Sinclair has been his greatest rival.
From their Cambridge days-where they clashed over research grants, publications, and academic accolades-to their fiery debates at international conferences, Evelyn was always there, a constant thorn in his side. Brilliant, ruthless, untouchable. She could dismantle his theories with a single scathing remark, and yet, she was the only one whose opinion he truly valued.
But their rivalry wasn't just about physics. It was personal.
Once, long ago, they had been something more. Beneath the sharp words and narrowed gazes, there had been late-night conversations, a hesitant camaraderie, stolen glances over equations, and the kind of connection that terrified them both. Until one night changed everything.
Raj had been young and stupid. He had made a mistake. One careless, arrogant moment that sent Evelyn packing to Switzerland, leaving him behind to wonder if he had ever really known her at all.
Years passed. Raj built his career at Caltech, buried himself in his work, and forced himself to forget.
Until the asteroid. Until her.