Finally sending someone a text message you've been dying to for ages, and then when they don't respond within 3 minutes pretending like it was meant for someone else. Just kiddds, no shame

Manipulating someone's view of you by sending a text with a salutation to another person (a fake person with the same first 2 letters of the name as the person it was actually sent to) in order to give someone false insight into your character...or to give someone insight into your actual character through surreptitious means..

or, just for character development, or need (literary) character flaw or conflict