My husbands biggest thing, as HairGirl said is that he just wants to be treated normally. Most people who know him don't even know about his CF, just CLOSE friends and of course family.
Everyon's CF is different, some have lung involvement (sounds like she did with the lung transplant) some have digestive problems which goes hand in hand with trouble gaining weight and spending a lot of time the bathroom.
I know you say you are new to Cf and completely ignorant. Most of us that are friend or signifigant others of CFers started out this way so don't feel alone. <img src="i/expressions/face-icon-small-smile.gif" border="0"> I didn't have much internet access when I started dating my hubbie (I was only 16) so I did some reading in books at the library and did search around online when I had the opportunity. It's mind boggling to read all that stuff out there, and some of it is really inaccurate. Unfortunately I didnt find this site until just a few years ago and it's been a great resource, but I spent a few years kind of freaking out after reading the worst case scenarios. The nice thing in your case is you've already found us on here, so any research you do, feel free to bounce the questions off any/all of us here.
Welcome to the site and major props for coming here to get more information. Hope you find answers here, and feel free to ask any specific questions you migth have.