I guess when you think about it from Fred's perspective, Jowee really is pretty suspicious himself.
What do you say in your defense, Goggles?
Sock: "Oh! Oh! See?! I'm not the only one who was thinking that!"
Sock: "So, go on, Goggles. What do you have to say for yourself?"
Jowee: "Wh-What? I- uh-"
Jowee: "I..."
Jowee: "...I don't... know."
Jowee: "I- I just don't want anything bad to happen again! If there's a chance that you're Wilfre, then I- I can't risk you tricking me, o-or trying to steal the Book of Life!"
Jowee: "I hope you're not him. Really. I hope you're just a normal Raposa. But... i-if there's a small chance that you're not..."
Jowee: "......"
Sock: "...Look, after listening to what you and those voices said happened, I get if you don't want to trust me. And... I'm not even going to ask you to trust me, or expect you to try."
Sock: "Because trust or not, we're sort of stuck together for now, aren't we? So even if we don't trust each other, perhaps we could at least have some sort of truce?"
Jowee: "...Yeah... I guess..."
Jowee: "Just... stay away from the Book of Life."
Sock: "Alright. Fine."