Personally, I don't know the situation and I'm going on the fact that you do. The reasons why this is happening are also important. Perhaps it's something that been happening in a spiral and your friend doesn't know what's happening. I'm the sort of people that does overthink. On itself not dangerous but it surely would have grown into a depression if I didn't know about it yet. Life brings opportunities and when the person isn't acting on them one can deduce that his or her mind is somewhere else. Like it is settled into the world it has created itself. The person in his or her thoughts feels safe there and one needs to mirror the appaling decline first to them. It won't help anyone who truly loves him or her, and that's one sure fact already