555, you are indeed... Seriously though, you are lucky to find someone like him. Couldn't imagine a young guy like him to be very serious in a relationship. And imagine his efforts in reaching you. That's very unusual to a guy. So, a friendly advice for you..,do not waste that great opportunity.
True, it's too early for you to settle coz you're both young, just enjoy your every moment. I understand the affection that you have to other guyz, that's normal, but if you value your relationship now, don't make any mess with others. Sure, you can hang out, enjoy, go along, but you should know your limitations, OK?