T.R.
I hope you'll forgive me for being a guy and reading this forum... but I learn things, and as the father of two children with my now ex-wife, it may be helpful to you if you let me share a dad's perspective on this situation.
I applaud T. for all she's done to provide for her son, in what sounds like some difficult circumstances. I don't know if you're getting child support, but getting legally-required monetary support from Dear Old Dad may help make your life a bit easier and your son's life better.
Regarding this situation, with me having read most of the comments below...
- Yes, it's a head injury, but golly -- two stitches? That's about as close to nothing as you can get in terms of what they had to do. Probably could have been handled in the doctor's office by a nurse, instead of an ER visit. (And I will admit that some head injuries that do NOT require stitches can be life-threatening.... but I suspect that you as moms are normally pretty good at figuring out which is which, and taking the appropriate action. Give Dad some credit.)
- He didn't call mom until after they were done in the ER. Moms, this is Dad, teaching his son something about how to grow up to be a man, instead of a neuter. BOYS NEED THIS FROM THEIR DADS. Please encourage this when you can. It would not have been the same had mom be there. Yes, even I can say that it tugs at my heartstrings to know that your son asked for you.... but understand that the dad time -- even (especialy?) in a minor "crisis" is very, very important.
- You might not have thought you'd over-react, but your ex's perception of you and how you behave may be far different than your perception of how you behave. If you want to 'fix' this, you'll have to learn to see yourself not as you want to be, or even as you are, but as HE sees you... and unfortunately, that's all wrapped up in the reasons you two got together, and then got un-together, and the fact that while he may love his son, he may resent the fact that his son is an unbreakable tie to unwanted interaction with you. Stephen Covey has a principle for getting to 'healthy' in situations like this: "Understand [the other person's point of view, wants, and needs] to be understood". You don't have to agree, support, or want the same things, but you have to understand the other person's persepctive in order to get what you want.
- As a guy -- but not knowing your ex -- I'll guess that you'll get more and better responses in the future if you support him in the part of the situation he handled well ("I'm really glad you did what you needed to get him to the doctor and make sure everything was OK") and ask him to let you know sooner when there's a situation that's this bad or worse. That *may* not get what you want -- but I can pretty much guarantee that demands *will* not. Your calm support for what he did right will help him realize that calling you would not have been as nerve-wracking and unpleasant as he feared. Your acknowledging what he did right will make it easier to do more things right in the future.
I can assure you... that if all you do is criticize, all you will get is behavior to criticize.
Best of luck to you. You sound like an exceptionally determined woman who's driven to succeed. I hope my comments have been helpful.