Hi
@Sydneysider , welcome to this brilliant forum!
I was diagnosed at your son's age, and it was overwhelming for all of us. That is completely completely normal - not that that makes it any easier!
Although I appreciate that in an ideal world life does have to go on with a sense of normality, this diagnosis is of course a massive deal, and I feel you're absolutely in order to put other things aside for the time being - priorities have of course changed, and I sympathise with your need for some space to come to terms with it and get used to the routine of including your son's diabetes into your lives.
Do keep the lines of communication open with your boyfriend though, as over time it would be great if he is able to get more of an understanding of what is involved. Sorry too to hear that your previously good relationship with your son's dad has become more difficult - he's of course on this 'team' too. I hope all will be well, and that the three of you (you, your boyfriend and your ex), together with your son, are able to be a great team not just in relationship terms but with his diabetes.
Hugs. You'll get there.
Love Snapsy