Sorry , Steph.
1) it was health he was talking about. 2) he really doesn't have a clue how big this is to you 3) he might also be looking for a some sort of guaranteed that life . This is most likely a part of the whole move in thing - just looking for something that doesn't exist. I do not know if the boy is a whatifer -but I am one. Playing out senerios in my head - a great comfort to me. Other people , it makes them crazy stupid.
And i agree with others above - there are places where your accommodation with the significant people in your life is rough at best. Example. When Matt and I got married I was healthy.- extremely . As in never even get got a cold. Now, even with diabetes and asthma - I am still reasonably healthy. however, if I get a cold - we have to have a fight. The last one was completely insane. He came up with bizzare suggests/orders. And yet, when I tell him how he can help me with my health, he forgets 2 seconds after I tell him. Now I admit there is insanity on my side. I am still extraordinarily angry at the state of my health. going from paying no attention to always paying attention is just wrong. But I think part of what is going on in his head is the fear of change - mixed with the much bigger fear that something will happen to me.
I know why you thought about leaving him. ( he should know that at some point) I also thik you made the better decsio to keep going forward. People that love you can hurt you the most, but only because they are there.