It wasn't a perfume scent; she never used any perfume.
It started when she moved into his house. Among a myriad of skincare products, she fell uniquely in love with the fragrance of camellias. Since then, she had abandoned all other types, no matter how expensive, effective, or luxurious. She never switched, always sticking to this camellia-scented line.
Sometimes, you like something not because of its price but because of how well it suits you.
It's just like loving someone: it's not about whether they are the most beautiful or handsome, but about how well they align with your aesthetic style and habits when you're together.
