According to a new study published in the Proceedings of the National Academy of Sciences, oxytocin may be the exact chemical component responsible for monogamy — which among mammals is an anomaly, seeing as only about 3% to 5% of mammals form life-long bonds.

The study consisted of twenty men who were lightly spritzed with the hormone oxytocin and shown images of attractive women as well as their current romantic partner.

We’d expect humans, especially males, would disseminate their genes. That would be a very strong evolutionary force driving male behavior. But what drives males to stay in a monogamous relationship?

Research has shown that men showed “a renewed attraction” to the faces of their current romantic partners as opposed to those of “equally attractive strangers.”

After the study was conducted, subjects were asked to fill out the Passionate Love Scale questionnaire in which many test subjects continued to reiterate their devotion to their current partner.

So now, there’s a possible chemical solution to your heterosexual male partner’s monogamy issue and you can buy it online! Your relationship is totally fine though.