Thank you for playing!! Glad you seemed to have fun!!
The MC being a cheater confirms 101% that Enjel is trying to screw with Evan, therefore he got pissed and killed him. But when the MC didn't humor Enjel, Evan still believed in the small chance that MC and Enjel had a misunderstanding (about Enjel trying to steal MC away). He wanted to believe that he was wrong in his intuition that Enjel even killed MC. So he wanted to hear Enjel out before doing anything.
In other words, Evan is too nice lol