"we personally match you with other lovely Dating Ring members (groups of 3 men and 3 women, or 4 members for gay groups) and act as your personal dating concierge" [0]
Unlike grouper it does not appear that any of the parties knew each other in advance. So if my understanding is correct, the two same-sex individuals you are matched with are also potential partners.
The other response is better. If it worked this way, you were gay, and the other two people of your gender were straight, you'd wouldn't have any potential matches there.