I like a guy on twitter?:L?

[musicandsportsmakemehappy]

okay, well i've recently got twitter, and this guy started following me..so i followed him back. we got talking on direct messages, and i kinda developed a crush on him:L we're the same as, and hes really fit! but i said something..i can't remember what..it was like 'how are you?x' and he didn't reply..i mean then like the next day i was like 'hey' and he didn't reply..and so i don't want to seem desperate..but he's all i can think about:/ i even failed my maths test because i couldn't concentrate! seriosuly, i know it sounds stupid, but i've never like felt this way before should i just let him go? btw he seemed fine one minute cause he started the conversation with like 4 x's but then the next he was just ingnoring me..and i know he's online because i see it on my homepage when he like retweets stuff or sets a new staus..
please help me:'(
thanks x