Sarah,
I too am struggling with feelings of loneliness. Together with depression and anxiety, the feelings of being alone and lost in the world can be very very painful. I’m still recovering from a break-up from a 7-year relationship. Rest assured that you are NOT alone even though your “friends” are no longer supporting you. Try writing your feelings down in a journal, know they are only temporary – as real as they are – they will NOT last forever. I’ve recently checked into doing some volunteer work so that I can break away from these feelings of being so alone. I’m so glad you posted in this forum and am sending you lots of light and love – you are not alone. I hope you can feel the love I’m sending.