teenof13,
I feel for you. However have you spoken to your father directly about it (in a respectful way of course)? Maybe he never realized that it bothers you.
Also, maybe he needs to take care of work related things on Sundays and doesn’t really have a choice.
One thing I am 100% sure about is that you are waaaaay more important to him than his friends, his work and his cell phone. He may not show it but I’m sure its true.