It does sound as though you have got through the worst of this now, and that is good news indeed. Change is never going to be easy, and it is a pain to have it imposed on you like this. However, it is important to concentrate on positive things rather than dwell on the negative. Although it might be hard to see this when you are in the middle of the bad times, there is an up side to diabetes! Many people have vague aspirations to become healthier some time soon (I know that I did) but, of course, "some time soon" never comes. By confronting you with some very stark choices, diabetes makes that decision for you. In the short term it is a pain, but in the long term once you and your boyfriend have got used to your new lifestyle you are very likely to find that you feel better for it. Before I was diagnosed I had lapsed into various really unhealthy habits. I lived a sedentary life, mostly sitting in front of computers, and - out of laziness - my diet consisted almost entirely of irregular meals of prepared and pre-packaged foods. The diabetes is under fairly good control now, but in that process I was kicked into a much healthier lifestyle. I have rediscovered the fact that I really enjoy cycling (my bike was in a sorry rusty state - now I spend at least an hour a day on it), and I have also rediscovered the fact that I really enjoy cooking. I enjoy food more than I used to, I am fitter and generally feeling better than I have done in many years.
I don't mean to make light of the rough times that you and your boyfriend have been going through, but there is light at the end of the tunnel and there are a lot of benefits to making the sort of changes that you now need to make.
Good luck,
Tim.