Broken Heart

For some reason I'm always the one who gets their heart ripped to shreds. Why am I the girl who is only flirt worthy, not relationship worthy? I just don't get it. I seriously thought that I had finally found someone who was actually interested in me. But no, all they want to do is flirt even though they are "unavailible". Do guys realize how much this hurts, apperently not. To clarify what I'm talking about this is not the occasional flirting, this is non stop flirting. I just want to know what's going on. Because right now I'm just confused and a little hurt.