This heart is very useful for expressing affection without pressure. It effectively conveys your sincerity when you're cheering someone on, expressing gratitude, or sending a message that they make you happy.

On some messenger apps (like Snapchat), it's also used as a special symbol for "best friend." Because it can express pure intimacy and support without romantic misunderstanding, it's a heart that can be safely used for all kinds of positive relationships across various cultures.