What did lex Luther do to Superman?

Answer 1

Lex Luthor had always thought of Clark Kent as the brother he never had, from the day that they first met after that prophetic accident on the bridge where Clark saved Lex's life. As time went by, Clark's fear and mistrust caused him not to trust Lex with his secret identity, and many people think that if he had confided in lex from the beginning they would have become closer and Lex would have used all of his resources to protect Clark and help him become a hero. I guess no one will ever know. Lex grew bitter over the years toward Clark because he always knew that he was hiding something very big from him, and Lex patiently waited and gave Clark chance after chance to open up to him and to trust him, but of course Clark was blatently dishonest with him on every occasion.

This sense of betrayal, combined with Clark's closeness to Lionel Luthor, the father Lex never really had, and the overwhelming reality that Lana always loved Clark and not him, caused Lex to plunge into a deep hatred and jealousness that pushed him over the edge. Whatever good was left inside of Lex Luthor was destroyed by that sense of betrayal, and he ultimately decided that Clark must be his mortal enemy. If you recall, nothing good ever came out of being an enemy of the Luthor family, so Lex's obscession with Clark and the secret that was so deviously kept from him all those years turned into a determination to destroy Clark and everything he stands for.

Answer 2

Because he wants to be the one who is the most powerful and is greedy. Superman is always there to ruin his plans