A heart shaped symbol typically sent from someone to their significant other via text message, email, etc.
1. Usually used when one has strong emotions for another that are hard to express, i.e love, happiness
Commonly used when one is too shy to say "I love you" for fear of it being taken the wrong way, or scaring off the person receiving the message
"Alex, I really like you, and hypothetically speaking, I miss you more. <3"