"Okay, Jo. Just let me know. I'd say 'call me,' but we don't seem to do that very well." Dean smiled slightly. He'd caught the look, and he recognized that Jo wasn't very happy about whatever was going on. He wasn't so thick as not to realize she wasn't answering all his questions. In fact, she was leaving too much unanswered. Both women probably knew that Dean wouldn't let it just go; he wasn't built that way.
"I'll see you round, Jo." He took a few steps closer, but stopped just as he got near Dinah rather than go directly to his fellow hunter. He cared about both women; they just had different relationships.
"If there's anything..." He didn't reach out for Dinah, but he certainly thought about it.