Ash, Bonnie, and Max go to Alola and meet Gladion. Ash starts having feelings for Gladion and viseversa. Bonnie picks up on this and tells Max and the gang while Ash picks up on Max having a crush on Bonnie and Bonnie have ping a crush on Max so he...
Bonnie- Alolan Vulpix-(evolves later), Blissy, Misdreavus, Rufflet, Oricorio(Purple one), Cutyfly, Silvion, Morilul, Comfey, (Sorry Bonnie has so many but she's Bonnie like there are soooo many that fit her)
If you don't know what Lana, Kiawe, Lillie, Gladion, or Mallow look like watch the Sun and Moon series