If he feels like your soulmate, go for it. My husband and I started dating when I was 17 and he was 15. We dated 3.5 years, then took a break for some of college and grad school. We both dated around, then got back together and were married within a year. That was 20 years ago. We have two amazing daughters and life is sweet. I dont think either of us regrets a thing. Yes, my health has deteriorated significantly since he met me and we've struggled with that, but he has also gone through difficult times where I have supported him unconditionally. I think part of the reason we work so well together is while we were "seperated" he got Lymes and was paralyzed and very ill for months. I think that really helped him truly understand where I was coming from with regards to my health. If you can have a great give-take relationship that is even, thats wonderful. Be wary of "mothering him" though, that will backfire in the long run.
CF DDf508 w/ CFRD (dignosed 3 months) 43 years old, 2 kiddos