Interesting dreams...my feeling is the one about the father figure in your life, he is trying to come through to you and like you said in your dreams you can't understand. It seems that might actually be what's going on with you and him, the grieving process, ya know. Sometimes we want to hear from them so bad but are clouded by sorrow and grief. That and he's saying hi and its the only way he can see you. Maybe thats what its trying to tell you. On the other hand, the one about your ex, I think u hit the nail on the head with that one. I'm sure he has regret, even if his ego wont allow him to show it or say it but it will come through your conscious because you guys are connected through your son. I find both of the dreams incredibly insightful. Your probably opening back up too.