Corgis think they're smarter than people — and when it comes to love, maybe they are. (Photo: Shutterstock)

According to a WalletHub survey, when love comes in the door, fiscal responsibility goes out the window—at least for some. And while 51 percent of respondents say they wouldn't marry someone with bad credit, that's not hindering some of the spendthrift romantics as they prepare for a day of hearts and flowers.

The freewheeling spending tendency seems to be more common among the male of the species. Men are nearly three times more likely than women to be prepared to go into credit card debt to buy a Valentine's gift for their beloved. Twenty-two percent of men are willing to cast caution to the winds, compared with just 8 percent of women.

That doesn't bode well for a long-term relationship, since 40 percent of people overall say that irresponsible spending is a bigger turnoff than bad breath. Interestingly, 60 percent of women would decline a proposal from a fellow with money woes—but just 41 percent of guys seem to regard that as a red flag in a relationship.