My boyfriend drives me insane...in a bad way?

Hello,
So I've been dating my boyfriend for almost three years. He's on ADHD medication and is well regulated on it...or so I thought. He was fine up until a few months ago when he started driving me NUTS! He always has to smack my butt or, in lack of a better word, flap my boob over and over again until I'm screaming and crying out of frustration because he will not stop! I will ask him 10 times before he actually stops. It's the same thing every single day and I can't stand it anymore! Today he was trying to suck my boob and I was ready to smack him in the head! What is wrong with him?! I feel like I have a child. Would you put up with this?