"Oh." The part where he was the boyfriend wasn't what gave her pause. It was that she understood how hard that had to be. She didn't care enough about anyone, not right now, to feel it herself but she wasn't heartless.
"Sucks, man. Sorry," she sympathized. Rosa wasn't great at being sympathetic, but she was trying. "Guess you've earned a few drinks then."
Sometimes getting stupid drunk was the only thing to do. Stupid drunk or punching something. Sometimes both. Both was better.