You're not a loser. I'm going through a similar situation. I let myself get wrapped up in a guy that is unavailable to me like I would like him to be. But this happened so many times, that I feel like it gets easier with time to just let them go. I feel like I'm worthless and unlovable and will remain single forever. So I understand the pain you're going thru right now. But we'll get thru this in time.