This is not an indication of a security issue such as a virus or attack.
It is definitely for a crowd that is more serious about finding a lasting partner.
Download Match (i OS, Android) Down is an app that just, basically, shows you who wants to "get down" with you.
In particular, Hinge, one of our favorites, did not fare well.
Here is America's ranking of 11 popular dating apps, as measured by Applause: Hinge's innovation was that it only matched you with your extended social network — friends of friends.
The app presents you with around a dozen matches a day for you to swipe yes/no on.