The order actually do look for mates and they find them only in other order members. The relationships between order members and humans are strictly forbidden, But thankfully, there is no need or desire for any order member to have a relationship with a human. The order do not feel arousal towards humans and the mental abilities of humans are hundreds of thousands of years behind in intelligence and knowledge.
The order always look for another order member for companion, but the way the order reproduce is completely asexual. For the order, sex is nothing but another useless flaw in the human design. The human ambition and selfishness is also something that the order find barbaric and unintelligent. No order member has ever shown interest for a human as a mate and they never will. The most significant relationship between an order member and a human has been for tactical purposes only.