Unrequited Love

Once again, I've fallen in love with someone who isn't retuning it. My heart is heavy, and feels like it could sink and fall out my toes. He says I'm "something else" and "intense". And I'm worried those are two reasons why I'm 25 and still single. I hope I can get over him soon. But as for now I'm pretty much in danger of feeling miserable for a while. I hope I don't botch this up.