>>22475899I think the whole logic behind it is a few things.
- Both have a connection to Bonnie
- Both have confidence issues
- Have Pokemon that dislike each other
In those things people thing they can relate to each other better than Ash/Serena can. In addition:
- Ash isn't interested in love.
- Bonnie is looking for a wife for her brother.
- Serena, Clemont, and Bonnie are temporary characters, while Ash is not.