Blaise had become a trusted colleague and good friend during their medical apprenticeship and she knew he had been best friends with Draco all throughout school. He had been there for her when she and Ron had broken up while Harry and Ginny were on their honeymoon. She remembered that argument like it was yesterday, even though it had been five years ago. Ron hadn't wanted to get married and she decided she wasn't going to waste her life waiting for him. 