"I will just run away if it happens again"......This is naivity/ignorance speaking. You don't always have the chance to run away. But you know what? you are very young and your hormones are screaming out of control. So I hope for your sake as I hoped for my own kids, that you won't get into too much trouble by the time you're mature enough to process all this.

You would be wise to break away from this man - give yourself 2 years and see how much you've matured by then, given that you haven't found another guy to obsess about. You might look back and actually think, what on earth was I thinking?!?!?!?!

You don't have to make love to anyone. Believe me. Its not always everything its cracked up to be. Making love isn't so much about the body as it is about using your brain.