Would you not want to know as much as you can about your spouse/S/O 's illness so that you knew how you can help in some way ?

I'm always there helping my husband and learning what I can to help him,,but he rarely ever ask how my Dr.appointments go,,I've been in the hospital twice he didn't ask for our children to bring him to visit,he doesn't drive anymore,his choice,,He got sick and just gave up,,I can't as I have children and grandchildren to think about and I take care of him 24/7 because he refuses to let anyone else help him,even though he had to ask for help when I was hospitalized,but to me he should care as much about my illness as I do him, Rant over..

I have had a good friend for several years who has convinced himself he has one disease after another. Every time I researched for him, and and every time he did NOT have that particular disease. Turns out he actually has a very slow growing form of blood cancer that could turn into leukemia (worst case scenario), and there is nothing that can be done to help him. I just deal with each sympton he finds as it arises. Now he wants to have knee revision surgery. I have had to distance myself emotionally, because it is just too much...over and over again.

I would try to learn everything I could in order to be able to help him.

Yes, I would do as much research as possible.

I have been there!
I didn't know how bad it was when we were dating. Once we got engaged it got worse and when we were getting married he was not great!
He used to always say "never worry until I'm worried"
I did have to do research h as he is one very private man even with me!

Yes. If they were open to me knowing more.

Yes, I've read books about it and then contacted the authors for help...

I want to know everything.
Not just a significant other.
But anyone I care about.

I’m assuming I would want to help care for them, and if I were their legal spouse it might even involve interaction with doctors on their behalf. So it would behoove me to know as much as I could understand.

I would do a ton of research from a to z.