Responses
Not exactly this but The Royal Prince's First Love is similar, it's gay main couple and the "love triangle" last very little and it's mostly there as a joke in the beginning
It's the only one I can think of close to what you are looking for sorry
i want to see straight love triangle but the end game for the rejected guy is having a relationship with another guy. lols. i want straight main couple and gay side couple ╮(￣▽￣)╭