Are people that tend to love everyone regardless of there problems they are not judgmental very intelligent a bit masterious but over all very generous giving people.
The blue heart is the bro heart. If you send this to someone after they send you a red, pink, yellow, or white heart, you're being friendzoned pretty hard there. Unless it's your BFF
"So how are things with you and insert crush's name?"
"Not good. Last night he sent me a blue heart!"