Real talk.
Fuck whether its a boy or girl.

Let's discuss why the writers feel the need to always have Ash's best Pokemon leave? Ash finally catches a regional Dragon, raises it, it fully evolves and then is almost immediately released back into the wild.
Why?
What purpose did that serve? Are they trying to go for feels? Cus we had no time to "bond" with the Goomy. It showed up, evolved, evolved again then left.
Charmander was saved, stuck with Ash through Kanto, Orange Isles and Johto before leaving him.
Felt rushed.

Can't ever let the twat have something good, can we? His Gible never evolved, his Heracross was a sap addict, his Beyleaf was a reverse furry, his Primape left to "train", he still hasn't gone back for Pidgeot and now his fully evolved Pseudo-Legendary Regional Dragon is gone too.

Seriously. Someone answer this question;
What was the point of even having Goomy if the plan was to release it a few episodes later?