new boyfriend?

Some of you may already know about the admirer I have at church. But since you might not I'll start at the very begining. I've heard its a good place to start. We have some people who are mentally challenged who come to our church. Well a couple years ago one of these persons, a guy named Junior, came up to shake my hand. Not wanting to seem unfriendly, I shook his hand. He pulled me in and kissed me on the cheek. I was pretty shocked and felt a little violated. After that I pretty much kept away from him and tried not to make eye contact.

Well tonight we had youth group and the activity was to spend some time at the house where these people live. We played cards and colored. And of course junior was there. He hovered around me a little but I pretty much ignored him. Of course i didn't want to seem unfriendly, but i did feel a little threatened. He even rubbed my back a little it was kinda weird. When we were ready to leave and said goodbye to everyone. I had to say goodbye to junior and he said "i see you in church". I sorta smiled and then he said "I still like you". I sorta ignored him and he said it again. I didn't know what to do so i just said ok and walked away.

So how should I have handled it? Why can't i have that affect on someone who isn't metally challenged?

Its been a pretty ordinary week. I've been working out as usual. So I should signoff and get to bed. Night all :)