I think you should've answered the phone, especially since it's late at night and you're out clubbing. If I called my girl when she was partying at night and she didn't answer, my mind would run a million different scenarios too. then again, i have security issues because of fucked up relationships and past girl friends ripping my heart apart, so im not sure if my advice is biased. also getting drunk and bar hopping with random dudes is not exactly acceptable by all guys...friends is one thing random dudes is not cool...not thatyou are not trustworhty, but most random dudes arent...hubby probably pissed because what you did might be dangerous, especially driving home half drunk or not answering your phone...what if you're in trouble etc? you probably got him worried.....all in all, not that bad as long as you didnt cheat and nothing a mind blowing evening of sex cant solve