It's more what he does

Batman took a deep breath and sat down at the table with Yin, this display of anything other than capable and self-assured was unlike Batman, Yin leaned in.

"What is it," Yin asked again.

Batman looked Yin in the eyes and just reached up to take off his cowl, revealing billionaire, playboy, philanthropist, Bruce Wayne.

Yin gasped and pulled away from Batman, no Bruce, this was all so confusing. She hated Bruce Wayne, she thought he was the scum of the earth, sure he gave money to charity and hosted a few charity events for the cops, but he was scum. She knew that he had to be breaking the law, repeated interactions with people like Cobblepot and Falcone told her that much, he was the anti-thesis of everything she'd ever stood for. Now he had been inside her, he had fucked her, he had claimed her, and made her feel more pleasure than she'd ever felt before.

"Is it true," Yin said motioning at the tv.

Bruce nodded, "Yes."

"So you did fuck her," Yin said, "like you did me." Yin stood up shouting now, "or did you just take her, I saw exactly what you were thinking of doing to me, but I wanted it like I've never wanted anything before," Yin was talking to herself more than Batman, "Did you drug me, no that doesn't make sense, what is it, what's going on?"

So Bruce explained, he didn't lie, and he didn't omit any details, Yin would see right through that. He told her about the Pheromone, about Circe, about trying to find who gave it to Ivy to figure out what was going on. He even promised to explain him being Batman to Yin in the future.

Yin couldn't think straight, she couldn't handle this, so she said, "I-I think you should leave," Yin looked down, she couldn't look at him, either out of shame or anger she wasn't sure.

"I understand," Bruce said standing up from the table, "I'd like to see you again," he put down a flip phone, "but I understand if you don't want to see me." With that Bruce left Yin's apartment.

Once he was gone Yin wrapped herself tighter in the Cape, it smelled like him, she closed her eyes hoping she hadn't just made a big mistake. Her mind flooded with memories of last night, how good everything felt, and how empty she felt right now without him. Yin closed her window and went back to her bed, she'd call in sick, she needed to think about things, mostly about him.