Qrow & Elsa
Weiss had told Qrow basically what she told Elsa - that she was here before and that she had friends. She only specified herself and hadn't mentioned Qrow. Weiss had figured they could tell Elsa everything once she was settled in more. If it weren't for her ice powers and the connection to her emotions, they probably would've mentioned things sooner.
But as such, it was simply not a good idea at the moment. Still, Qrow figured he'd just tell her they had known each other but that was all. "We did, yeah," he nodded slowly. "I think you and Weiss met before, then we met a bit after that."
That was all he was going to say, though. "Sorry, but I should get going. It was nice meeting you." Again, or whatever. Before she could respond, he walked off.