When is it ok to cry in public?

Can you Adam 'n' Eve it? There I was, sitting in a trendy coffee bar/lounge drinking lemon and ginger tea with friends and then it happened. I cried...in public. This is me we're talking about, you know? The hard-nosed accountant who is adept at the most uber-professional face. Not some fake Hollywood actress gushing crocodile tears at the Oscars, or Gilly what's her face in the jungle, this was me. Yep, I did it. I blubbed. Surprisingly, at the time I didn't actually feel that embarrassed. And in hindsight I actually feel blessed to have friends who it's ok to cry in front of. When I got home and texted my BFF to tell her what had happened that day she said 'don't worry, I cry all the time now'. By this I assume she means post-baby. My Aunt died this week and although I saw her in hospital on Christmas Eve, all I can feel is guilt that I hadn't spent more time with her, or visited or called more. How come death puts life so into perspective.