Really, Really Smooth
A close friends list is an exclusive list of people whom a person holds closest to their heart. The individual has full authority to decide whom they want to add or remove from their list, based on their level of friendship. Which is why it seems quite desperate if someone would ask you to “add them to the list”.

In this instance, we observe an individual trying to persuade someone to add them to their close friends list. When all their attempts fail, they have nothing to do except call it an accidental text.