Unknown icons?

[bexxyxox]

Does anyone know what these icons are? And what apps they are from? A heart with a heart overlapping from the right and a fish with a heart tail and heart fin

 

[KBU2]

Where is this icon , meaning is it on your device or someone else's?

 

[s0nflower]

Looks like a dating app maybe? Plentyoffish (aka pof) for example