I will tell you that I have learned alot about being alone and being with people that only saw the outside of what I had to offer! I filled up my time with what I call "empty time" that is the time I have spent with people of the opposite sex (intimately or socially). At the time, I never really looked at these times as being negative for me because it was a quick fix so that I didnt have to be alone and deal with feelings that I had deep inside.
I am not sure what your situation is but this is mine. I was involved with a man for over 3 years. This man loved me like I had never been loved before. Im sure that you know that loving a person with depression is one of the hardest things you could ever experience. In short, to this day, this man is still the love of my life and in my mind, we will grow old together. Although we are not "together" now, I know that my heart will never accept another. I know what you are saying, as others have said to me, move on there are others that will love you. Sorry, they have not lived the love I have, I guess you could say that I truly lived a "cinderella" story. It was not perfect by society's standards but it was "perfect" for me.
I have been dealing with being without him (alone) for almost a year more significantly over the past 3 months. I can tell you this, yes there will be good people that will come into your life and you may be able to find that but in my case I do hate being lonely but not alone. There is a difference. I dont mind being alone to a certain degree because that is time for me that I reflect on my life, yes when these times get longer and longer without the fullfillment of the goals I make in my time then the loneliness sets in. That is what I have trouble with. However, I have found that in that loneliness there is a peace that I have knowing that I spent this time working on me, not trying to replace the loneliness with others that leave me feeling used, unworthy of what I had and a general overall feeling of hopelessness.
I know time alone can be hard, believe me, if anyone knows, I do. What you must decide though is whether or not you hate being alone or the fact that you are lonely.
Good luck to you, I hope this has helped in some way.