How should I cut him loose from my life? I still want to go to my class.....

I keep saying I've done with him....and again he's coming back to my life....it's been five months back and forth....and I'm not even in love with him....I don't even like him anymore...he's so mean and unkind to me and to others even....I've never seen such a selfish person in my entire life....
I don't want to talk about him anymore....I just want to bang my head to the wall for being so pethetic and going out with him again on Saturday....
The problem is class that we go together and other activities....such a pitty that I have to cut myself off from my hobby (dancing)....not sure what to do really?
I know myself to get rid of him completely, I must cut loose all the tights and not seeing him at all....to do that I have to stop going to my dance class and the clubs I used to go....It's so sad....I love my Thursday nights dance class....It's really fun....and I like to go to the club time to time on Fridays or Sundays....but he's always there...always....he's everywhere....
any thoughts?
thanks in advance
m.

Yep, I had that problem. We also shared the same friends, which made life suck even more.
I transferred universities as a first step. Little by little our common friends shifted towards his side more as they were gradually forgetting me. I was ok with that. After graduation I moved to Europe to start a new life.
It's been good so far. Happy with the decision. I know it was crazy and risky and bold, but I needed a "new page" for myself and my life.

I don't feel love for him anymore. I do feel MASSIVE disappointment, sometimes anger for wasting so much time with him...but most days I catch myself feeling nothing, as if my heart has turned into stone when it comes to him.

If you have the strength to simply ignore him, do so. For me this was not possible because our lives were too entwined and he knew me too well.
Ignore him, you have better things to do.

Thanks valexand for your advice....I don't care about him anymore....I've never been in love with him....I just liked him....I had crush on him that I don't have anymore after seeing him so cold....and I think God has accepted my prayers and he's giving me strength to think logically....
We do have common friends, but they are all his friends first....honesty, I don't like them that much...that is one of the reason I don't want him....useless friends....but dancing is my passion and I want to continue it....I really don't want to throw it away because of him...also, I love the place I'm living....no more change of country for me...I've done this already before....I think all I need to stay strong and ignore him as you said....
thanks again
M.