First of all I had a long time friend unfriend me on facebook over a year ago. I had a full blown panic attack and got severely depressed over it. That's a long story in itself, but I want you to know that you aren't alone in feeling a loss or questioning where a relationship was at. He just stopped talking to me and that was that.

Secondly never ever start to feel unworthy because of someone else's actions. You are very much deserving of love and a worthwhile person. Don't ever stop believing that. I know this hurts, but this is not a reflection of you.