I'm so sorry Melstar. I don't think you should be kept from your son because you were hospitalized. For God's sakes, you aren't a mass murderer! And you were NOT going to be alone with him -- Did you make that CLEAR to your ex?
I'm sorry your ex wouldn't let you take him. But you are going to have to make more of an effort to get ahold of your son. Keep calling -- try more often, because they can't be gone ALL of the time.

Perhaps if you make more of an effort to talk to your son, your ex will be more lenient next time and let you take him. But right now, he doesn't think that you've tried hard enough.
I wish you the very best Melstar. I know this is hard on you, but I'm glad you have your cousins, aunts & uncles to spend the holiday with.

Please take good care of yourself, and God bless. BIG hugs, Lee