Hello, I´m actually on PC for myself, but this thread is about my friend.

He´s been shutting himself off over the past few months.

We used to meet regularly in a group of friends, like once a week or so
but more and more he kept canceling or saying he didn´t have time.

He´s told me at some time that he is depressed at and has trouble sleeping and other issues with his Mom and job/college situation, but he made it sound like it was no big deal.

It has come to the point where he really doesn´t seem to see anyone at all anymore and doesn´t even pick up the phone.
He´s isolating himself, I feel and I wonder.... can this be because
of his depression that he doesn´t want to see anyone and wants to be alone?
(he even preferred to be alone on his B-day, as opposed to being with friends or family)

I myself have trouble with depressive phases though depression is not my diagnosis (but anxiety/PTSD).

So I wanted to ask you guys. It seems strange to me, because whenever I feel depressed, it helps me a lot to see and meet with friends.
On the contrary, when I do not have a social outlet for a longer time, THAT makes me depressed.

But I wanted to ask what you think...