First off, never get into a relationship that's over the internet. The person behind the computer can be either lying about their age or be some random creep who wants to know everything about you. Of course, you're in highschool and have common sense from right to wrong. I won't stop you from having relationship over the internet (that's if you're interested) but I'm just telling you to be careful. This world is falling apart little by little. Also, the boys today aren't the same back in the 90's (if you know what I mean)...but anyway, everything them is taking things to next level...like...nothing is romantic as before...everything is a quicky.
Keeping this chat PG, I prefer expressing yourself. Never rush into the friendship. Usually, in High school, there's pretty much a good decent number of boys who might like you but are afraid of expressing themselves. Also, tell a friend you trust. I'm sure they would understand and help you throughout the process. I'm no cupid, but it was good that you told the guy you liked him - but also unfortunate he liked you as friend. Don't worry, there's other chances. Trying meeting people outside of school. Join clubs and camps...I'm sure there's boys you'll meet and eventually have feelings for them.
Overall, just: express, share to close friends, and choose wisely. I hope this helps you.