<human>: Can you provide a brief rundown of the text in within 3 sentences?

My friend (28m) and I (33m) had a brief phone chat where he said that he was going through some problems.  We were both unable to talk for very long and the phone conversation ended without him going into details.  Not sure if he wants to or not, and I don't want to risk appearing like I'm sticking my nose in my friend's business.  But I wonder if perhaps the problems are significant enough that I should really do something to help.  He is very independent and would never want to show vulnerability.  

I am also close friends with his fiance (we have all been friends for about 4 years).  Should I go and ask her?  I don't want to appear like I'm going behind him to pry into his life or endanger any trust between us.
<bot>: My close friend is going through problems and hasn't offered to say why.  Should I ask my other close friend who is his fiance?