This may be my reduced intelligence from listening to Fighter's treatise on "friendraderie" talking, but the simpler scenario is to drag Thief down here with us.
Black Mage
(quietly) We've been doing it this long, so why stop now.
Fighter
(off-screen) Thief! Join us in the cavepanion!
Thief
(off screen) Yeah, my plan getting involved getting off this godsforsaken island. So I won't be doing that.
Fighter
C'mon Thief. All the cool kids are doing it!
Red Mage
Cool kids? Are they going to pants me? Give me a wedgie? Make fun of my jeans? What is their obsession with my pants! My bathing suit area is not for touching!
Black Mage
I've been thinking. Maybe we can get out of here and leave Red Mage behind. It's the best of both worlds.
Black Mage
(to himself) Secretly, I intend to leave Fighter behind as well.