Or maybe you just had too much caffeine....I'm just sayin'
Regulus merely let her do what she needed to do. He would rather sustain injury from her at this point than be left to the devices of his "comrades". He was surprised, however, when the only thing he did was berate him again for his choices and try to defend her own. He stood and took it, almost hoping that she'd snap and hex him right then and there. He deserved it and it would've been the least she could do for him.
He gave a small sigh when Dorcas turned to leave. He turned back to the bar and got another drink. Tonight wasn't the night to stop her from leaving. Not when Regulus himself had so many issues to deal with. Trying to fix things with her was going to have to happen another time. Telling her the truth was going to have wait for another time.