you and your friends is having fun at the cafeteria, playing a truth or dare...they ask you to choose and picked a dare, your one friend dare you to message in random number and message 'i miss you'

You message someone's number "hi, I miss you"

You're done in your dare and You showed it to your friends

10:21 pm, you're laying down at your bed

Suddenly your phone got a message and you saw the message "who are you?"