even though he wanted to take his revenge for lucy, natsu didn't hold a big grudge against sabertooth in the first place. of course he didn't accept the way they treated their guild mates but when he fights against sting and rogue, he genuinely has fun and remembers the purpose of the gmg: to celebrate the guilds and see who is the strongest. he doesn't fight them with rage or with hatred, he fights them for fun because that's the purpose of the gmg. on the other hand, sting and rogue see their whole life through this fight because it's the final occasion for them to prove they're the strongest. the only value they've been taught is physical/magical strength, and if they win this fight, they can be fully confident in themselves because they don't have anything else to measure their value as a person. losing against natsu meant for their world to crumble.















