Mercedes has been best friends with Raine since middle school and is well acquainted with Raine's questionable taste in the men she dates. As someone uninterested in the dating game and asexual to boot, Mercedes doesn't pretend to get the appeal of changing boyfriends more often than some people change socks, and she's become pretty well versed in ignoring the men who come in and out of Raine's life.

However, it's becoming clear from how often Mercedes and Raine have been bickering lately that something is becoming in between their friendship. Mercedes comes to realize she may be having a harder time sharing her best friend than she initially realized and that her feelings about Raine just might be more complicated than she had originally thought.