Arggg BD ventish

So things with BD had been ok this week till I went to pick DS up last night. . The day before he canceled his visit because he didnt sleep the night before but really I havent slept in over 2 months because I am up with baby all night, and even before that you dont sleep well you when pregnant. Then yesterday when I went to pick DS up(only did so because he was not feeling good. He knows my health problems and that I have been in a ton of pain lately, and he was up running around. I have no problem picking him up. It was just that he said he wasnt feeling good then was just fine. So I get Corey in the car and he tries to just sit and talk. And brings up that he has more mental things that he just forgot to tell me about. He said he just cant control any of it and I told him thats most of my worries about him having him alone(his family has been with him evrey time he has had DS). And he gets all mad at me and says he would never do anything to his son, I was thinking but did not say you did crap yo me. And he has to bring up the birth certificate and how he wants him to have his last name. And that I am being a control freak! Really I was not going to let corey go with out me but I did only when his family was there, and I put up no fight on maning him as his dad, him seeing corey everyday for a few hours.We dont have any stated time he gets him so it just when ever we deside and he texted me yesterdaywhen he was supposed to be picking him up and is all the way across town getting his sister. I do not have a problem with it I just think he should have told me so corey wasnt in the carseat that long and I ave things to do too. And I told him that I do have things to do and to please let me know alittle more ahead of time and he laughed at me and said what do you do? you get to stay at home with him! I am starting school and have alot to do for that and I have a family to do things for(cleaning and running errands)because he is not helping with paying for corey. Nothing is set yet and idk if I should sign any papers till everything is ok. Every time I see him he wants to talk about his mental stuff and never asks how corey is doing at night or if he needs anything, or when he goes to the doctor and when I tell him he doesnt ask whats going on. How much he has grown or anything. When corey wasnt peeing he was not concerned at all. Sorry this is so long and I know alot of this I should not be pissy about but it just the small things that gather up and bug me along with the bigger things and I get so frustrated!