The heart symbol on Snapchat usually shows how close you are with someone. A next to a friend means you’re each other’s #1 best friend, meaning you send the most snaps to each other.
On Snapchat, heart emojis show your friendship level. A yellow heart means you’re each other’s #1 best friend. A red heart shows you’ve been #1 best friends for two weeks. The pink hearts mean you’ve maintained that for two months. These symbols reflect streaks, interaction levels, and mutual engagement.