<human>: Give me the gist of the text in a nutshell

I have a friend and his partner is waiting to find out if she has cancer.  I really don't know him all that well and I've only met her once.  My girlfriend and I were invited to watch a movie with the two of them last week and his partner couldn't make it because she found out might have cancer.

Since then I e-mailed to say we were thinking about them and hoped everything turns out okay and when he responds I have trouble thinking of things to say.

I don't have much experience with cancer and I don't really know these people that well.  I just don't want to come off insincere or uncaring, but I don't want to seem *too overconcerned* since we just met a few weeks ago.

Worse, I just checked my inbox and found he had e-mailed me a couple days ago that I didn't repsond to.  The e-mail said:

>Sure, let's pencil it in.  It gets worse.  The result came back inconclusive, so we still don't know.

I had e-mailed to say we should get together next week if they are up for it.

I know this is really stupid and I should just write a simple response, but this stuff makes me really nervous and uncomfortable and I always say the wrong thing.

Any tips?
<bot>: Friend keeps me updated on his partner's wait for biopsy results, I never know how to respond because I'm an awkward doofus.