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.