A life partner is a romantic or otherwise very close friend for life. The partners can be of the same or opposite sexes, married or unmarried, and monogamous or polyamorous.
Yoite and Miharu Rokujo are each others LifePartner
A politically correct way of saying gay lover. Usually the gay lover you would marry, but you can't because it is not legal to marry other dirty assclowns. Unless you go to Massachussets where I think it's still legal, that is until the gays abuse it like they do each others sphincters.
Bruce and Terri make the cutest lifepartners, too bad they can't marry... Oh well, let's go throw a big gay parade and force gayness on unsuspecting breeders.(aka hetero people)