<human>: Provide a brief overview of the text.

Me and my friend Jenny have known each other for 5 years. A year ago she started dating a really great guy named Dane. 

Dane and I get a long really well and he is quite fond of me, he doesn't really like any of her other friends (can't say I blame him honestly.) 

A month ago or so, Dane came over to my house to talk to me about something. He beat throat cancer when he was 15. He had just gotten back from some doctor's appointments and they ran tests (or did whatever) and figured out that his cancer had returned. He was supposed to immediately see an oncologist. 

I was really supportive and all that, but he told me he hadn't told Jenny yet. He still hasn't told her! I haven't talked to him about it again yet, but I've talked to her and asked the right (seemingly innocent) questions and basically it's absolutely clear that he hasn't told her yet. 

She knows I know the history and wouldn't hide it from me if he had. He also hasn't made that appointment to see the oncologist, and I don't believe he has told his dad yet either. They are best friends and his dad is his main support system. No mom in the picture. 

I feel super awkward about this and awful. I feel like he is in denial or something? Why hasn't he told her? And why me!? Why not his dad? 

I have no idea what to do if anything. Do I stay quiet? I obviously can't tell her behind his back. Do I contact him again and encourage him to tell her? I have done that before but apparently it isn't making much of a difference. 

I feel terrible about the whole situation and I don't know what is the right decision to make. Please help me reddit!!
<bot>: good friends boyfriend's cancer has returned. He hasn't made his doc appointments, he hasn't told her or his family. I'm the only one who knows. What to do!?