My feeling is that the guy is going through something of his own. He sounds like a not very communicative person to begin with, so if he's having personal problems he'd be unlikely to discuss them. But this kind of withdrawal is often a symptom of emotional upheavals... perhaps he's struggling with depression, maybe there's a health problem or death in his family, maybe his girlfriend left him, maybe he's got a drinking problem, it could be anything.
So my instinct is to cut the guy some slack. Reserve feelings of anger or rejection by adopting a wait-and-see attitude for whatever's going on with him. And let him know that if there's anything he needs to talk about, you're all ears, but that if he doesn't want to talk about it you'll respect his privacy.
So my instinct is to cut the guy some slack. Reserve feelings of anger or rejection by adopting a wait-and-see attitude for whatever's going on with him. And let him know that if there's anything he needs to talk about, you're all ears, but that if he doesn't want to talk about it you'll respect his privacy.


 ](*,)](/images/smilies/bang.gif)
