"So am I. We probably still would've met on New Year's, but who knows if we'd have seen each other again after that?"
Callen was a firm believer in fate, but he also believed that you didn't get unlimited chances with something till you got it right. If you didn't take an opportunity when it came your way, you probably weren't going to get it again. Fate was fickle that way.
"Hmm. What's your biggest regret? Take that seriously or not."