Is Gene a trustworthy narrator???

In A Separate Peace our narrator Gene isn't the most trustworthy person.He is jealous of his best friend Phineas, and this clouds his vision on who Finny really is. Also Gene doesn't have a high opinion of himself, he doubts himself and is constantly comparing himself to Phineas.Gene says, "I was beginning to see that Phineas could get away with anything. I couldn't help envying him that a little, which was perfectly normal. There was no harm in envying even your best friend a little."(Knowles 25)

In the previous quote the reader not only sees that Gene is envious of Phineas but Gene also tries to justify his jealousy by saying that it was normal to be jealous of your best friend. Then later on Gene says, "He had not been jealous of me for a second. Now I knew that there never was and never could have been any rivalry between us.I was not of the same quality as he."(Knowles 59)

This quote shows Gene comparing himself to Phineas and deciding that Phineas was better than him.

Now does this sound like a trustworthy narrator to you? Someone who can't even be trusted with his own thoughts.