I'm going to make out with my best friend's crush.
That doesn't seem very nice. Why would you want to do that to them?
I want to humble him and this seems like the best way.
That is a really mean thing to do to our friend. Your friend may never trust you again if you do that.
Your little emotions and feelings can't stop me.
Making out with your best friend's crush will surely harm your relationship with him and most likely end it. If you have a problem with your friend then you should talk it out with him, but purposely hurting his feelings is unnecessary. Wouldn't you feel awful if the situation was reversed?