In the sport of doubles, cp names are used to refer to some famous duo, just for the sake of being loud and easy to remember, and it does not involve the relationship between love and husband and wife.
Generally speaking, cp is not understood as a pair in the conventional sense, but more often it is limited to personal fantasy that so-and-so is a pair, which generally refers to the intimate relationship between two people, and is also commonly used to refer to partners and combinations.