What should my reply to this be?

I have been pen-pals over email with a close friend of the family for a year now. I like him and have been told that he likes me. But we are just now getting into the whole "i-like-you" exchanges. So, I don't know how to respond so that i don't freak him out but let him know i like him.

This is the current conversation.

ME: "So do you and your friends date girls at your school?"

HIM: "Yes. But I have never said yes. Do you?"

ME: "I have been asked but never agreed because i don't like or enjoy the company of the boys at my school. But I'd surely go with someone who I actually liked (such as you.) I'm sure you've been asked, why did you say no?"

HIM: "I don't like the girls at my school. But I would also go with someone who I liked. Such as yourself."

Now, I don't know how to respond. We're only teenagers, by the way. Some help would be fantastic. Oh, and he lives in Germany while I live in the USA, so it's long distance. Thanks! :)