Most Helpful Guy
Break up with him then.
I have Type 1 and I've never blamed anything I've ever done on my Diabetes. Don't let him use that as an excuse. As someone who has it. That excuse is 100% bullshit.
At worst I ask people to just not interact with me when my sugar is off. I let them know I don't want to be mean to them so they aren't offended and then I just spend alone time until I feel better.
Most Helpful Girl
to be honest you need to help him talk to a doctor to get him on a better control medication or a better dose. my dad is diabetic so I know how hard things can be but you can't give up on him just like that. maybe talk to him and tell him that right now a relationship is not something that you can have with him because his sugars are not properly controlled and he is uncontrollable when low but that you want to help him get better control of his sugars and when that happens then maybe a relationship would work. don't make it entirely his fault but let him know what he is making you feel and that once things are better under control then you 2 can try again. make sure that you help him get better control of his sugars too as he clearly needs help. I hope things work out for you 2 and that he can get better control over his sugars. good luck