What is the most logical next event?

How to get someone to stop crushing on you
Make it absolutely clear that you are not interested.
Be polite but be clear and firm that you don't return the feelings for this person. Be kind but don't give in to the person just because you feel sorry for them.

Select from the following.
[1]. If you want him or her to stop picking on you, go sit down with him/her and have a conversation about it. Let it roll naturally but if the things start out like that, just tell him/her.
[2]. If you absolutely have something with them but your friend doesn't, this might be a bad sign. Make sure you get permission and perhaps speak to them privately about it.
[3]. If this isn't what you want, then it isn't what you want. Say something like: " it's flattering to hear you say such a nice thing to me.
[4]. Express genuine interest in this person, but don't take it out on them. Take their love for you into consideration.
[3].