How to get rid of someone who pretends to be a friend but you know for sure that you are nothing more than a fleshlight to him?

He does maintain the outward appearance of a very good friend and nice human being with adorable ethics.

But he also always laughs at me with others when they are making fun of me.
How to get rid of someone who pretends to be a friend but you know for sure that you are nothing more than a fleshlight to him?
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