I need a girlfriend :(?

i've been single now for way to long & i'm starting to get love sick, i've been looking around for someone but there is no-one who attracts me, i don't know how much longer i can last without a girlfriend, i don't mean to sound desperate but i seriously am lonley & depressed about being single. The thing that makes this whole thing complicated is that i am in love with someone who doesn't feel the same way, she has a boyfriend & she has no feelings for me, so i really really need to move on. I don't know how though, it's giving me heartache