Examples of cost-inflicting mate retention behavior include things such as limiting a partner’s social life by monopolizing her time and insulting her to make her feel undeserving of the current relationship.

Teasing and negs are a valuable component of a healthy, committed, and uncucked relationship!

I was right in my suspicions about what this study was really saying. Higher testosterone was associated with “cost-inflicting” mate retention behaviors, i.e., threats against interloper men or psy ops against girlfriends. Psy ops on girls and maneuvering for dominance over other men are alpha male pastimes. Showering women with reassuring PDA, being a shoulder to cry on, expressing devotion, and “benefit provisioning” as mate retention strategies are the lower T beta male options, and in the Darwinian calculus these beta strategies aren’t nearly as effective as the “cost-inflicting” alpha strategies for keeping women in love and reproductively loyal.

...

Ted Colt adds,

if you want to prevent a woman from straying, impregnate her, limit her employment prospects, & surround her with family

it worked for thousands of years

Realtalk. But suffrage happened, and now we live in Vagina World. For modren times (ie the age of careerist shrikes and mass contraception), the best prophylactic against a woman cheating on you is

1. choose wisely and
2. have her fall in love with you

A love of sufficient infatuation is indistinguishable from worship. And no woman will cheat on her god.