Does anyone know what a white heart means?

[Bunnybigears]

Apparently according to DS12 when posting on social media, a blue heart is for friends and a red heart is for girlfriends/boyfriends. But does anyone know what a white heart means? DS says he doesnt and a friend has some concerns with their daughter and has come across this white heart in her social media posts.

I dont think that many people, or any age stick to the colour 'rules' when its comes to emojis.

I asked 15 year old dd and googled it. Dd said it's just like using any heart (she also doesnt agree that certain colours are for certain people). Google only said it's the same as using the red one, but no special meaning attached.

Blue Heart= Friends
Red = Relationship
Black = Grievance

No other colours have a meaning behind them apart from them. Or so I heard from DS.