While the Pokémon Trainer's Choice is correct in establishing that Plusle is effective against Mudkip, Roselia, being a Grass-type, and therefore resisting Water as well, is a more effective choice.
This would be the last episode where Megan Hollingshead plays Nurse Joy until Catch a Lot of Pokémon! The Path to Mew!! (2019), 775 episodes later.
The dub title is based on the phrase "love at first sight".
For reasons unknown, this episode was delayed and premiered in between Candid Camerupt! (2003) and I Feel Skitty (2003) in the United States.