Do you completely miss that he is an adult Tickling His Feet? Do you miss that this is a classic teenage crush and the 'aggressor' is half hinting half suppressing this. If this were a girl treating the 21 year old like this you should not doubt that it is a messy crush. You know there are homosexuals in the world right?
You honestly suggest that he has to act like an animal/child in getting rid of this 'bully'. They are a lot older than that; too old for that.
And so you attack his character, way to null any chance he listened to your ill formed advice. (lol irony)