Antonin told her the night she surprised him in the shower that he hadn't been with another woman since before she returned to Hogsmeade in May. She wasn't surprised to hear that he'd been with someone while she was on the run. Was it Ginny? Was she meeting her husband for clandestine meetings while Hermione lived with the Resistance? Or when she knew that Hermione was sharing a bed with Draco in his flat? Had Ginny been laughing behind Hermione's back or cursing her for abandoning her husband? She seemed devious enough that she would continue to fuck a man who was worried about where his wife was even if she already knew. Especially if it was Hermione's husband. Ginny had a mean streak in her that wasn't always on display.