I find that my life and my mood goes in cycles. There are times where I seem to attract more friendship and positive events into my life. At other times, I feel more down, more tired, and people seem to recede, or perhaps I'm not reaching out enough to them. It sounds like you're doing all that you can. Maybe you can just try to nurture and comfort yourself in ways that work for you, and know that things will get better again. Some of my friendships have faded, but I find that there are always new people coming into my life. Best wishes for your happiness.