What a lovely intro, Jen! My husband could introduce himself here, but he won't. LOL He doesn't visit my forum, but he helped me set it up and helps support it whenever I am having "technical difficulties" with the forum.
You are right in that there are many challenges in watching your loved one deal with this condition, and that we all become stronger because of it. My husband is very supportive of me. He respects me for having figured out how to help myself so well, and he actually doesn't really worry about me on a daily basis anymore. There are times that I don't feel well, such as this morning when we were getting ready to take our son to the orthodontist. All of a sudden, I just felt really ill. So, I immediately laid down on the bed for a few minutes. My husband didn't worry, but he took it seriously in that he knew that was what I needed to do. He did ask what I thought caused it, but neither he nor I got uptight about it. It is definitely a journey to get to this point, but it can be done. At first, he would worry terribly. (He always helped me and still does, even doing all the household things that I cannot....or hiring a cleaning service to do it. Hee hee) Now (15 years later), we have passed through the "learning about it" and "dealing with it" stages. Now we are in the "get on with our life" stage, because we understand my condition. Yes, I get sick. Yes, it could be life threatening since I could go into anaphylaxis. No, I don't worry about that. We just handle it when I get ill. We know what to do, and the ER is always there if needed.
It is totally possible to resume life as a family. I have twins and we are super busy with sports, etc. It is simply a matter of changing one's expectation. I can't go mountain climbing. Oh well. Yet, I can go on vacations and do all sorts of things because I know how to pace my life to help prevent symptoms. Hopefully you and your fiance will move right through all these stages quickly and land where I am now. Life is good for me, and I wouldn't trade it for anything.

It sounds as if your fiance has won the lottery with you by his side!