There isn't nobody better than you, yet he destroyed that relationship with you between the fight with Finn by being overcontrolled by the green spider. He's wondering what you saw in him, what made you love him, yet he had a burden to believe nobody loved him just. Just because he isn't the real Finn.

He doesn't blame you if you bury him in his memories and tell your close friends that he wasn't you thought he was to be. Now he lays somewhere in a different area, in the grass as the sunsets like if he was staring at a blank wall. You're the reason that Fern's heart opened, blossomed for you.