How did Gene deal with his friendship with Finny after the acident?

Gene became dishonest. He made an attempt to tell Finny the truth about what had happened, but with Finny's cool character, Finny wouldn't accept Gene's words. Gene allowed that to happen and continued their relationship knowing Finny had no concept of the truth.

Gene became very defensive on behalf of Finny and demonstrated feeling guilt. Gene seemed to admire Finny greatly in the very beginning of the book, grew jealousy just before the incident in the tree, and after the incident when Finny returned to school tried to help and cater to Finny's needs. He skipped school with Finny when he didn't really want to, he babied Finny about his leg by refusing to talk about it.