Anyway... since I know which characters you refer to... that guy from the Suzie ep in Kanto, Harley, Zoey and Candice... but that's only exaggerated ridiculous crazy fans speculation,
You're correct, Piplup! That trainer from the Suzie ep was confirmed to be gay by Dogasu, Harley was fairly obvious, and Zoey/Candice are pretty much canon.
Ok, post the next question.