So why did Charmander turn into a huge fucking cunt when it evolved

I blame public school

Pent up anger/frustration at having been abused, combined with becoming very powerful within a very short period of time despite being rather immature mentally.

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He looked up to Ash as a child, but with maturity realized Ash was a loser and lost all respect for him.

>>28598208
Ash not being a worthy trainer for him.

Isnt it obvious?
He evolved after defeating hundreds of Exeggutors. He leveled up too fast and Ash didnt have the required experience to make him listen. Happens in the games too.

>>28598208
I think it was just supposed to mirror what happens in the games if you level up your traded pokemon too high without badges.

>>28598208
Puberty makes everyone go through and edgelord phase.

>>28598390
>>28598415
Except Charizard still disobeyed Ash even when he had all 8 badges.