Run with it! It's spring after all ;-)
But seriously, if you don't feel the same way - don't panic. As long as you're both interested in each other, then why not enjoy the company? Even if he loves you, and you don't quite feel the same way yet, but are still interested in him, then go have fun. It doesn't have to be complicated. Love given shouldn't come with strings - you don't have to feel exactly the same way...just gracefully receive it, and enjoy it.
If on the other hand you don't feel remotely the same towards him, then it's probably eaiser on you both to politlely and firmly make that clear.
Hope that helps!