Maybe if you miss her you should see about taking a time to actually sit 1 on 1 and talk.. if that still doesnt resolve anything, then at least you can say you've tried.
As for being upset with your bf for going to his friends, and then your boss agitating you... i COMPLETELY understand.. when im upset or angry EVERYTHING... literally everything spirals into making me more irritated or upset or angry. Sending lots of Hugs your way