Well if he doesnt even know you exist, and you havn't even spoken, your love probably isn't true. He may be turned off or creeped out if the first thing you ever say to him is "Hey! What's up?? I love you..." Try getting to know him better first and make sure you like him for something more than his skiing skills and physical appearance. -S-
First of all, you don't love him if he has never talked to you. You just really like him. Second of all, you don't tell a guy who has never talked to you that you love him. That is just beyond silly. He might already know that you have a thing for him and that is why be has not talked to you. If he was attracted to you, he would let you know. Meanwhile, just try to be friends with him without any romantic interests being conveyed by you. That way he might start to take an interest in you, once he gets to know you better. Also, that way you don't have egg on your face from blurting out that you love him.