What happens on dating apps ahead of Valentine's Day?

As Valentine's Day approaches, love isn't just in the air — it's in the data. 

The CBS News Data Team asked the most popular dating apps what their dating data show. Dating apps such as Hinge, Tinder, Bumble and OkCupid saw a surge in activity in the first half of February last year, with a rise in swipes, messages and matches, suggesting a last-minute push before Valentine's Day.