I wouldn't say I agree with Omni, but I understand that point of view. Being someone that's been hurt too many times by people who are sworn to "protect and serve" and people that were supposed to love me; I tend to think about people's feelings. I don't want to hurt someone like I've been hurt. That being said, it is possible to remain friends, if you're both mature enough.
I as well see Omni point of view and say that is the safest way to go about life but it is also the hardest thing to go about life, maybe not for you but for beings of instinct that is almost very damn well impossible! You usually end of letting one member of the same sex close to you and if you are a being of instinct well, your instincts not only tell you to stay alive but to carry on your gift of life which you can not do alone. Looking at your vampire marker I will assume you are a vampire (and if you are not ignore, your not the only one who picks the wrong marker, I as well, of course that marker was the closest thing to me) I am not really sure you have instincts any more.
It is wrong to lead him on, it is fun to lead him on, it is even more fun to play with him, in fact most people would call that sick.
First thing, you must find out if you like him or don't. If you do, well go with him, if you don't, continue reading.
Second you must find out if you care about the boy's feelings. If you do, continue reading if you don't do what ever the fark you want who cares, after all you don't.
Don't lead him on, be straight to him as soon as possible.
If he continues to be around you, ignore him, you have tried to be civil and mature and he is choosing to be a little boy.
Losing friends... You seem to be the type of person who keeps their friends close which will probally come close to damn well near killing you and if a boy friend does turns on you, I am going to hate feeling what you will feel.
There is a saying Frighten.
Your enemy's eyes look a hell of alot like your friend's do.
Your real enemies Frighten are the ones that can actually really hurt you and give you wounds that will either last too long or never heal. The only type of people who can give you those wounds are well, the ones close.
This boy is a speed bump in your life, be prepare, its a bumpy road life is.