Why were you trying to distract your girlfriend during her girls trip? How long was her trip? If it is not too personal, how often (and length of time) did you contact her during the trip?
How much time did you want from her during the trip? I do believe you were being unreasonable. "A block out of her day" is a lot and sounds like a few hours. Trips are already hectic to begin with, she was already in a different zone having fun with her friends. I think a few minutes (or about 10 to 15 minutes maybe) is enough during a busy trip just to let you know that she safe and well, and more details to follow after the trip.
I just think she wants some personal space, especially since you mentioned you are "obsessive and clingy".