Sorry you did not have a chance to spend time with this old friend and could not join her and others because you had to work. It sounds like this friend was not very good at planning to make sure she could make time to see all her friends. It sounds like she did not give anyone much notice either and ended up having to do it that night because that's the only time she could get at least a couple of her friends out to have time together. You were asked remember, but you had to work and could not go. Also, these other friends may know how she is last minute and had to think about how they may only get to see her last minute too. Her communication was poor before she even arrived too. It sounds like she is a poor communicator and planner type individual in general that just flys by the seat of her pants. You cannot change how she is and she was probably always that way if you sit and think about it, somewhat scatterbrained.