Of all the bizarre matchups that end up in marriage, none are seemingly more bizarre than the couples who meet and marry when the groom is in prison — often for life — without the chance for parole.

Bringing up the rear in this strange subculture are the women (and sometimes men) who remain married and committed to their spouses — despite the fact that the spouse is often serving a life sentence for crimes as heinous as murder, rape and God-knows-what.

On Valentine’s Day, inappropriately enough, Discovery ID debuts a new series, “Prison Wives,” which will give you a whole new respect for the women whom I, for one, always considered loony at worst or seriously suffering from commitment phobia at best.

Hey — what better way to keep your man from cheating on you with another (well, another woman, at any rate) than by marrying someone who can’t ever go out on you.

On Sunday night’s premiere, we meet Pam Booker, a woman married to a man who is serving two life sentences without the chance for parole. Her husband, Lance, was convicted of murder, even though everyone acknowledges that he did not murder anyone. He was in the backseat of the getaway car.

We learn that Pam met Lance, a recovering crack addict, when both worked as homeless counselors. They fell for each other before Lance fell off the crack wagon and they married while he was in jail. Shortly after the prison wedding, he was convicted — and she suffered a major stroke that left her impaired.

But it hasn’t stopped her from the arduous tasks involved in being Lance’s wife, “lawyer,” defender and loving sex partner. Yes, once every two weeks they get to live in a prison trailer together for 46 hours. That means that she does the food shopping and has to carry it all up along with her clothes on a three-plus hour bus trip.

Other wives we’ll meet in subsequent weeks include Georgia Benson, whose husband, Don, is about to be released after 18 years in the slammer; LaToya Marian, the most determined wife you’ll ever meet; and prison husband Tim McDonald, a 64-year old retired airline captain who met his future wife, 38-year old grandmother Deion Harris (a convicted murderer) while she was in jail for murder without the possibility of parole.

Every one of the spouses is fascinating, quirky and madly devoted — and they’re all-the-more strange because they seem so well, regular.