Evolving delta buneary?

i got one in the egglocke, and she’s at max happiness (as far as i can tell, as ive had her since the start)

ive heard she has to be minimum happiness, but how do i do that?

By making it faint a LOT or for the easy way around, make it eat Bitter medicines (i.e Energy Root, Energy Powder).

where do i obtain the bitter medicines?

It’s on Narra Town. In the mini market there is a vendor that sell them.

thanks! is that gym 8?

It’s the town right before the pokemon league.

But How many? It says it hates travelling with me, but when it levels up, it doesn’t evolve. Is there a certain level?