Ok but (from the event log):

There are a total of five teams including the Foreigners' working on this case, and it becomes evident fairly early on that two of of the four kedan teams must be working in tandem with one another and slipping each other information. While there's no way to prove this conclusively since it is against the rules, it'll be important to keep one step ahead of this unconventional alliance if the other teams have a chance of winning.

The Kedan are cheating. Given they're doing this, Hiro's opinion will probably be that "the love thing" is totally fair game. He won't tell if nobody else tells.