Oh hun - my heart was just breaking for you in your post

As for telling you who you can talk to and what you can feel I would be telling him to go and jam it! He gave up the right to have any input into your life and tell you anything about what you can do on the 17th December. As for not having anything to do with his son I would also be calling on that - it's the easy way out for him and I would be telling him that although you want nothing to do with him he needs to have a relationship with his son (if only for his son to work out what an idiot his father is and so he doesn't idealise him).

He sounds like a very weak and pathetic excuse for a man. You are much better and stronger than that - we are all here for you anytime.
I second the above! .. I must say you've handled yourself with the utmost in self respect ...I would like to say that if I were in your position I could handle myself the same way but I don't know if I've got that much self control..
Your ex is pathetic, you deserve much better than what he could offer. Sorry you're having to go through this