Insouciant - free from concern, worry, or anxiety. Origin Insouciant entered English from French, based on the French verb soucier meaning "to worry." Ultimately it finds its roots in the Latin sollicitāre meaning "to disturb.
Exactly what on earth did I do for you to do all this? I cuss all the time get pissed off call you childish but why on earth would you ever humiliate me like this . What is wrong? I can tell why I'm upset but why the fuck are you doing this